{"product":{"catalog_id":"1308239e-57e8-45e4-ba17-47e94e9a0215","is_eligible_search":true,"is_eligible_checkout":false,"item_id":"da70ab20-eeff-410f-b349-6ec10060b332","title":"TencelTm Lyocell Symphonie Duvet Cooling Casing","description":"This is a duvet (Symphonie) with a cooling casing made of 300-thread-count TENCEL lyocell, a biodegradable fiber with moisture-wicking properties, and a washable, hypoallergenic recycled polyester fill. It is designed to provide cool, comfortable sleep and features piped trim, sewn-through box construction to keep fill in place, and is machine washable/dryable. Available in Twin, Double, Queen, and King sizes with dimensions ranging from 66x90 inches (168x229 cm) to 108x95 inches (274x241 cm) and weights from 38 to 65 oz.","url":"https://www.simons.ca/en/bedding/duvets/tenceltm-lyocell-symphonie-duvet-cooling-casing--8819-1241040?colourId=0","brand":"Simons Maison","condition":"new","product_category":"bedding > duvets","material":"Casing: 100% TENCEL™ lyocell; Fill: 100% recycled polyester","age_group":"adult","image_url":"https://imagescdn.simons.ca/images/8819/1241040/10/A1_2.jpg","additional_image_urls":["https://imagescdn.simons.ca/images/8819/1241040/10/A2_2.jpg","https://imagescdn.simons.ca/images/8819/1241040/10/A3_2.jpg"],"images":[{"id":"img-1784702960080-0","url":"https://imagescdn.simons.ca/images/8819/1241040/10/A1_2.jpg","alt_text":"TENCELTM lyocell Symphonie duvet Cooling casing product image (primary)","position":1,"attributes":{"other":{"summary":"Interior staging with a neutral wall and wood floor; soft directional lighting from the top right casts subtle shadows and highlights across the duvet. Image is cropped to show the right-front portion of the bed.","observations":[{"key":"Background and surface","kind":"feature","value":"Plain light beige wall with white baseboard and medium-tone wooden floor visible behind and beneath the bed.","regions":[{"x":0,"y":0,"width":1,"height":0.3,"confidence":"high"},{"x":0,"y":0.86,"width":1,"height":0.14,"confidence":"high"}],"evidence_status":"direct"},{"key":"Shot composition","kind":"feature","value":"Three-quarter frontal view focused on the center-right portion of the bed; pillows partly visible behind the top fold; lower-left edge of bed cropped out.","regions":[],"evidence_status":"direct"},{"key":"Lighting and shadow","kind":"feature","value":"Soft, diffused directional light from the top-right causing gentle highlights on the fabric sheen and faint shadows in the tufting and drape folds.","regions":[],"evidence_status":"direct"}]},"colors":[{"name":"bright white","part":"duvet main surface","regions":[{"x":0.02,"y":0.2,"width":0.96,"height":0.6,"confidence":"high"}],"subject":"product","description":"Uniform, bright white fabric with a subtle satin-like sheen under soft lighting.","sampled_hex":"#F1F1F3","estimated_hex":"#F6F6F6"},{"name":"bright white","part":"stitched leaf emblem","regions":[{"x":0.78,"y":0.72,"width":0.12,"height":0.12,"confidence":"high"}],"subject":"product","description":"Same bright white color as the duvet but visually defined by stitching and slight shadowing within the emblem.","sampled_hex":"#F1F1F2","estimated_hex":"#F6F6F6"}],"product":{"summary":"White duvet/casing laid on a bed, shown from a front-right angle with visible quilting stitch lines and a stitched leaf-shaped emblem at the lower-right corner. The fabric appears smooth with a slight sheen and a piped edging along the top fold.","observations":[{"key":"Overall surface","kind":"feature","value":"Single-layer white duvet cover visible across the bed surface with a smooth, slightly lustrous fabric and shallow vertical drape folds.","regions":[{"x":0,"y":0.18,"width":1,"height":0.68,"confidence":"high"}],"evidence_status":"direct"},{"key":"Quilted stitch pattern","kind":"feature","value":"Regularly spaced, shallow square tufting created by stitched intersections visible across the duvet surface.","regions":[{"x":0.05,"y":0.28,"width":0.9,"height":0.48,"confidence":"high"}],"evidence_status":"direct"},{"key":"Top folded edge with piping","kind":"feature","value":"Upper edge folded back to reveal a piped seam running along the fold and a visible inner layer; fold extends from center toward the right side.","regions":[{"x":0.45,"y":0.1,"width":0.55,"height":0.2,"confidence":"high"}],"evidence_status":"direct"},{"key":"Leaf-shaped stitched emblem","kind":"feature","value":"Distinct stitched emblem in a leaf or feather motif located near the lower-right corner of the duvet, formed by denser quilting lines.","regions":[{"x":0.78,"y":0.72,"width":0.18,"height":0.2,"confidence":"high"}],"evidence_status":"direct"},{"key":"Corner drape","kind":"feature","value":"Lower-right corner of the duvet drapes down and rounds toward the floor, showing the duvet thickness and pliability.","regions":[{"x":0.76,"y":0.76,"width":0.24,"height":0.22,"confidence":"high"}],"evidence_status":"direct"}]},"packaging":{"observations":[]},"schema_version":2,"coordinate_space":{"units":"normalized","origin":"top_left"}},"variant_ids":["4056977","4056979","4056981"]},{"id":"img-1784702960080-1","url":"https://imagescdn.simons.ca/images/8819/1241040/10/A2_2.jpg","alt_text":"TENCELTM lyocell Symphonie duvet Cooling casing product image 2","position":2,"attributes":{"other":{"summary":"Indoor staged product photograph showing the bed against a plain textured wall and wooden floor; soft directional lighting from the left casts shadows across the bedding.","observations":[{"key":"Shot composition","kind":"feature","value":"Framed from a slightly elevated angle facing the head and right side of the bed, cropping the left pillow partially and showing the mattress top and duvet foreground.","regions":[],"evidence_status":"direct"},{"key":"Background and surface","kind":"feature","value":"Beige textured wall behind the bed and a narrow strip of medium-toned wooden floor visible at the bottom-right edge.","regions":[{"x":0,"y":0,"width":1,"height":0.35,"confidence":"high"},{"x":0.82,"y":0.86,"width":0.18,"height":0.14,"confidence":"high"}],"evidence_status":"direct"},{"key":"Lighting and shadows","kind":"feature","value":"Soft directional light from left creates horizontal bands of light and shadow across the duvet and pillow surfaces, producing visible highlight gradients.","regions":[],"evidence_status":"direct"},{"key":"Image quality","kind":"feature","value":"High resolution, well focused with natural color and no visible text or branding in the frame.","regions":[],"evidence_status":"direct"}]},"colors":[{"name":"bright white","part":"duvet cover surface","regions":[{"x":0.02,"y":0.28,"width":0.96,"height":0.7,"confidence":"high"}],"subject":"product","description":"Uniform bright white fabric with a soft low-sheen finish showing subtle highlights and shadows.","sampled_hex":"#F2F1F4","estimated_hex":"#FFFFFF"},{"name":"bright white","part":"pillowcase surface","regions":[{"x":0.18,"y":0.1,"width":0.58,"height":0.2,"confidence":"high"}],"subject":"product","description":"Matching bright white pillow fabric with soft wrinkles and a slight reflective highlight on the top surfaces.","sampled_hex":"#DDD3CA","estimated_hex":"#FFFFFF"}],"product":{"summary":"Right-side view of a bed showing a white duvet cover/casing and two white pillows; visible features include sewn baffle or quilted square tufting, a folded top edge seam, and pillowcase flanges.","observations":[{"key":"Pillow geometry","kind":"feature","value":"Two rectangular pillows placed near the head of the bed; the right pillow is fully visible and shows a slightly rounded filled profile with soft wrinkles across the face.","regions":[{"x":0.18,"y":0.1,"width":0.58,"height":0.2,"confidence":"high"}],"evidence_status":"direct"},{"key":"Pillowcase flange","kind":"feature","value":"Pillowcases have a visible outer flange or turned hem that extends beyond the pillow edge on the right pillow, forming a narrow flat border along the open side.","regions":[{"x":0.57,"y":0.15,"width":0.18,"height":0.12,"confidence":"high"}],"evidence_status":"direct"},{"key":"Duvet surface tufting","kind":"feature","value":"Duvet top shows a grid of shallow square tufting or stitched baffles creating subtle square depressions across the surface.","regions":[{"x":0.05,"y":0.4,"width":0.9,"height":0.52,"confidence":"high"}],"evidence_status":"direct"},{"key":"Duvet top seam/fold","kind":"feature","value":"A folded top edge or turned seam runs horizontally near the upper third of the duvet, with a narrow visible stitch line along the fold.","regions":[{"x":0.04,"y":0.3,"width":0.92,"height":0.12,"confidence":"high"}],"evidence_status":"direct"},{"key":"Fabric finish","kind":"feature","value":"Fabric appears smooth with a soft low-sheen finish; light creates gradual highlights and soft shadows revealing subtle wrinkles and drape.","regions":[],"evidence_status":"direct"},{"key":"Right-side drop","kind":"feature","value":"Duvet hangs slightly over the right edge of the mattress, exposing a narrow vertical tail of fabric near the bottom-right corner of the image.","regions":[{"x":0.86,"y":0.36,"width":0.12,"height":0.48,"confidence":"high"}],"evidence_status":"direct"}]},"packaging":{"observations":[]},"schema_version":2,"coordinate_space":{"units":"normalized","origin":"top_left"}},"variant_ids":["4056977","4056979","4056981"]},{"id":"img-1784702960080-2","url":"https://imagescdn.simons.ca/images/8819/1241040/10/A3_2.jpg","alt_text":"TENCELTM lyocell Symphonie duvet Cooling casing product image 3","position":3,"attributes":{"other":{"summary":"Studio-style close-up with neutral background, soft directional lighting from upper left, and no props or text; image is vertically oriented and slightly cropped at edges.","observations":[{"key":"Shot composition","kind":"feature","value":"Tight detail shot filling the frame with the product corner positioned toward the upper center-right and negative space below.","regions":[],"evidence_status":"direct"},{"key":"Background and lighting","kind":"feature","value":"Plain light background with soft directional lighting creating gentle shadows and highlights on the fabric surface.","regions":[],"evidence_status":"direct"},{"key":"Image crop","kind":"feature","value":"Edges of the fabric extend to the image borders and some parts of the product are cropped outside the frame.","regions":[],"evidence_status":"direct"}]},"colors":[{"name":"soft white","part":"main fabric","regions":[{"x":0,"y":0,"width":1,"height":1,"confidence":"medium"}],"subject":"product","description":"Uniform white with a soft satin-like sheen, appearing slightly warm due to lighting.","sampled_hex":"#F3F1F4","estimated_hex":"#F6F6F6"}],"product":{"summary":"Close-up of a white duvet casing corner showing folded edge, corner tie loop, and reinforced stitched seam on smooth, slightly lustrous fabric.","observations":[{"key":"Corner tie loop","kind":"feature","value":"A narrow fabric loop emerging from the seam at the corner, formed from the same white fabric and lying flat across the surface.","regions":[{"x":0.29,"y":0.16,"width":0.48,"height":0.18,"confidence":"high"}],"evidence_status":"direct"},{"key":"Reinforced stitched seam","kind":"feature","value":"Visible double-row topstitching along the folded edge forming a reinforced seam; stitches are even and parallel to the edge.","regions":[{"x":0.58,"y":0.08,"width":0.36,"height":0.7,"confidence":"high"}],"evidence_status":"direct"},{"key":"Folded corner construction","kind":"feature","value":"Corner is folded over with an inner folded flap creating a layered edge; inner fold creates a soft rounded corner profile.","regions":[{"x":0.22,"y":0.1,"width":0.56,"height":0.38,"confidence":"high"}],"evidence_status":"direct"},{"key":"Fabric surface finish","kind":"feature","value":"Smooth, tightly woven fabric with a soft sheen reflecting light, suggesting a sateen-like finish visible across the main surface.","regions":[],"evidence_status":"direct"},{"key":"Light shadow and texture","kind":"feature","value":"Subtle shadows and highlights emphasize slight surface drape and gentle creasing near the corner and loop area.","regions":[],"evidence_status":"direct"}]},"packaging":{"observations":[]},"schema_version":2,"coordinate_space":{"units":"normalized","origin":"top_left"}},"variant_ids":["4056977","4056979","4056981"]}],"price":"49.95 CAD","sale_price":"49.95 CAD","availability":"in_stock","listing_has_variations":"true","variants":[{"sku":"4056977","url":"https://www.simons.ca/en/bedding/duvets/tenceltm-lyocell-symphonie-duvet-cooling-casing--8819-1241040?colourId=10","image":{"id":"img-variant-4056977","url":"https://imagescdn.simons.ca/images/8819/1241040/10/A1_2.jpg","alt_text":"TENCELTM lyocell Symphonie duvet Cooling casing - White - TWIN variant image","position":1,"variant_ids":["4056977"]},"price":{"value":100,"currency":"CAD"},"title":"TencelTm Lyocell Symphonie Duvet Cooling Casing - White - Twin","option1":"White","option2":"TWIN","image_url":"https://imagescdn.simons.ca/images/8819/1241040/10/A1_2.jpg","sale_price":{"value":49.95,"currency":"CAD"},"variant_id":"4056977","availability":"in_stock"},{"sku":"4056979","url":"https://www.simons.ca/en/bedding/duvets/tenceltm-lyocell-symphonie-duvet-cooling-casing--8819-1241040?colourId=10","image":{"id":"img-variant-4056979","url":"https://imagescdn.simons.ca/images/8819/1241040/10/A1_2.jpg","alt_text":"TENCELTM lyocell Symphonie duvet Cooling casing - White - DOUBLE variant image","position":2,"variant_ids":["4056979"]},"price":{"value":130,"currency":"CAD"},"title":"TencelTm Lyocell Symphonie Duvet Cooling Casing - White - Double","option1":"White","option2":"DOUBLE","image_url":"https://imagescdn.simons.ca/images/8819/1241040/10/A1_2.jpg","sale_price":{"value":59.95,"currency":"CAD"},"variant_id":"4056979","availability":"in_stock"}],"item_group_title":"Tencel<sup>tm</sup> Lyocell Symphonie Duvet Cooling Casing","size_system":"US","gender":"unisex","is_digital":"false","review_count":51,"q_and_a":[{"a":"TENCEL™ Lyocell fibers are made from wood sourced from certified (FSC® or PEFC) or controlled wood sources, ensuring sustainable forestry [1][2]. The fiber production process is EU Ecolabel certified for reduced environmental impact [1]. While OEKO-TEX certification is common for TENCEL™ products, it is not explicitly stated for this duvet's casing.","q":"Is the TENCEL lyocell casing OEKO-TEX certified or made from sustainably sourced fibers?"},{"a":"To prevent shrinkage and maintain cooling properties, wash this duvet in cold water (30°C/86°F) on a gentle cycle with mild detergent, and avoid hot water above 40°C [3][4]. Tumble dry on low heat or air dry flat away from direct sunlight; high heat can damage the fibers [4].","q":"What is the recommended washing and drying temperature to prevent shrinkage and maintain the cooling properties?"},{"a":"This duvet does not have corner loops or ties; it uses sewn-through box construction to keep the fill evenly distributed and prevent shifting. If you prefer to secure it inside a duvet cover, you may need a cover with internal ties or use duvet clips.","q":"Does this duvet have corner loops or ties to secure it inside a duvet cover?"},{"a":"Recycled polyester fill offers a plush, medium loft that is less lofty and breathable than natural down but comparable to typical down alternative fills. The TENCEL™ Lyocell casing enhances breathability and moisture wicking, partially offsetting the fill's lower breathability. It provides good warmth without the weight of down.","q":"How does the recycled polyester fill compare to down or down alternative in terms of loft and breathability?"},{"a":"This duvet is designed primarily for warm weather or hot sleepers, as the TENCEL™ Lyocell casing is lightweight, moisture-wicking, and thermoregulating to keep you cool [product description]. The recycled polyester fill adds some warmth, making it suitable for year-round use in temperate climates or for those who sleep warm—but it may not be warm enough for cold winters without additional layering.","q":"Is the duvet suitable for year-round use or primarily for warm weather?"}],"reviews":[{"date":"February 11, 2026","title":"Soft!","rating":5,"content":"This duvet is one of the best duvets I’ve ever touched. It is very fluffy and soft and lets me sleep like a baby.","reviewer_name":"Myrna C."},{"date":"February 11, 2026","title":"Trop grand pour notre king","rating":2,"content":"Trop grand pour notre king","reviewer_name":"sylvie m."},{"date":"July 5, 2024","title":"répond tout à fait à","rating":5,"content":"répond tout à fait à mes attentes","reviewer_name":"louise g."},{"date":"June 23, 2026","title":"Très belle et légère.","rating":5,"content":"Fait très bien sur notre lit.","reviewer_name":"Sylvie c."},{"date":"February 26, 2026","tags":["Material Quality"],"title":"Too warm for a 3 season duvet.","rating":3,"content":"Good quality but warmer than I expected.","reviewer_name":"Kevin P."},{"date":"June 11, 2025","title":"Quand même pesante pour une","rating":3,"content":"Quand même pesante pour une couette d’été, je suis déçue.","reviewer_name":"Nancy C."},{"date":"October 23, 2024","title":"Amazing","rating":5,"content":"I chose this duvet because it seemed light but substantial, and had cooling which I prefer, and it doesn’t disappoint! A nice big duvet that is incredibly soft, it’s literally like sleeping in the clouds. Love so much.","reviewer_name":"Emily K."},{"date":"June 19, 2026","title":"Nice Duvet but","rating":3,"content":"This duvet feels so light and fluffy but the reason for this purchase was that it would be the ideal summer duvet, not too warm. I had purchased a summer weight down duvet but had to return it as it was impossible to sleep with it. It was too warm. Fortunately this one is less warm for summer nights but still too warm for me","reviewer_name":"Francine B."},{"date":"June 21, 2024","title":"Couette symphonie","rating":5,"content":"J’adore! Doux et confortable.","reviewer_name":"Karina A."},{"date":"August 3, 2024","tags":["Material Quality","Value"],"title":"Belle qualité","rating":5,"content":"Belle qualité","reviewer_name":"Colette L."},{"date":"March 16, 2025","title":"Fantastic","rating":5,"content":"No issues, as described.","reviewer_name":"Jacob S."},{"date":"June 23, 2026","title":"Feels like sleeping in clouds","rating":5,"content":"Love the duvet but will keep it for winter. It’s very lightweight but still warm. Also very fluffy. Purchased cooling blanket from Costco for summer.","reviewer_name":"Ivana A."},{"date":"July 13, 2026","title":"Confo","rating":5,"content":"Mon garçon dit dormir dans un nuage….","reviewer_name":"Caroline S."},{"date":"January 17, 2026","title":"Très douce, mais mauvaise finition","rating":3,"content":"La couette comme telle est super douce, super moelleuse, juste assez légère, mais réconfortante aussi. Par contre, la finition laisse à désirer. . . Les coutures qui tiennent la bourure en place sont décousues à de nombreux endroits. Nous avons échangé la première couette pour cette raison et la deuxième était encore pire, donc ce n'est pas un problème isolé. Simons m'a toutefois offert un bon service pour me dédommager, donc 3 étoiles au total.","reviewer_name":"Justine S."},{"date":"June 4, 2026","title":"Très bon achat !","rating":5,"content":"C'est exactement ce que je voulais","reviewer_name":"Madeleine M."},{"date":"January 5, 2026","title":"Belle couette","rating":5,"content":"Belle couette","reviewer_name":"Sylvaine L."},{"date":"January 23, 2025","title":"Super fluffy and cozy but NOT cooling","rating":3,"content":"I purchased this duvet instead of one on sale at the time Because of the claim to be cooling. It is the hottest duvet I’ve ever owned (doesn’t bother me) but my husband refuses to use it.","reviewer_name":"SAMANTHA S."},{"date":"January 18, 2026","title":"Comparatively not the best but not bad either","rating":2,"content":"I have another Simon's duvet from Costco that is one of the best duvet I have ever used. It's pure cotton and it's not in stock.","reviewer_name":"Shalini W."},{"date":"October 20, 2024","title":"On aime","rating":5,"content":"Légère et confortable!","reviewer_name":"Camille F."},{"date":"June 7, 2024","title":"Légère","rating":5,"content":"Légère","reviewer_name":"Thérèse G."},{"date":"April 9, 2025","title":"Tellement douce","rating":5,"content":"Tellement douce","reviewer_name":"Mariève S."},{"date":"November 27, 2025","title":"elle est énorme et dépasse","rating":3,"content":"elle est énorme et dépasse largement, mon lit, double ,des 2 cotés","reviewer_name":"danielle f."},{"date":"March 8, 2026","title":"Superbe couette","rating":5,"content":"J'adore sa grandeur et sa régulation de la chaleur. Très satisfaite de mon achat","reviewer_name":"Gabrielle S."},{"date":"January 9, 2026","title":"Perfect","rating":5,"content":"Soft and fluffy, not to hot or cold.","reviewer_name":"Nefertiti M."},{"date":"October 21, 2025","title":"bon acaht","rating":5,"content":"Très légère et confortable","reviewer_name":"Claire D."},{"date":"February 4, 2026","title":"Légère et chaude","rating":5,"content":"Très légère en terme de poids, mais très chaude. Combo parfait selon mes goûts","reviewer_name":"Corinne S."},{"date":"August 9, 2025","title":"Couette","rating":5,"content":"Excellente !","reviewer_name":"Jocelyne F."},{"date":"November 6, 2024","title":"Confortable","rating":5,"content":"Oui","reviewer_name":"Danielle A."},{"date":"November 9, 2025","title":"Just the right temperature","rating":5,"content":"Love it. I had purchase a different duvet that was all year, but it was way too warm for me. This one is much better. Still fluffy and warm without being too much.","reviewer_name":"Rafaela M."},{"date":"February 2, 2026","title":"Comfy!","rating":5,"content":"A good mid-weight, and very comfy!","reviewer_name":"Laura B."},{"date":"December 1, 2025","title":"Léger et doux","rating":4,"content":"J’ai apprécié cet article.","reviewer_name":"Sylvie C."},{"date":"October 29, 2024","title":"Très légère je recommande cet","rating":5,"content":"Très légère je recommande cet article","reviewer_name":"Linda T."},{"date":"March 4, 2026","tags":["Value"],"title":"couette","rating":5,"content":"Très bien pour le prix","reviewer_name":"Sylvie B."},{"date":"October 25, 2024","title":"Trop chaude","rating":3,"content":"Trop chaude","reviewer_name":"Johanne P."},{"date":"September 24, 2025","title":"Chaude et légère","rating":5,"content":"On adore!","reviewer_name":"Salomé M."},{"date":"October 27, 2024","title":"Pas parfaite","rating":4,"content":"Premièrement, elle devait être \"fraiche\", mais je la trouve très chaude. Le tissus la rend vraiment glissante, alors même si elle est attachée aux 4 coins, elle doit être \"fluffée\" à tous les matins. Elle est tout de même bien conçue et de qualité.","reviewer_name":"Julie G."},{"date":"July 10, 2026","title":"Fraicheur","rating":2,"content":"Je n'avais pas vu touché cette couette avant de l'acheter. Je croyais qu'elle ne serait pas si chaude, mais si c'est pour quelqu'un de normal elle est beaucoup trop chaude. Ok, nous sommes l'été, mais chez moi, la température est régulée par une thermopompe et j'ai beaucoup trop chaud avec cette couette. La description est erronée.","reviewer_name":"vicky c."},{"date":"September 30, 2024","title":"Confortable mes trouve quel tiens","rating":5,"content":"Confortable mes trouve quel tiens pas avec la couette il faut toujours que je la replace","reviewer_name":"Sylvain O."},{"date":"July 29, 2025","title":"Exactement ce que je voulais","rating":5,"content":"Exactement ce que je voulais","reviewer_name":"lucie g."},{"date":"January 26, 2025","tags":["Value"],"title":"Très satisfaite","rating":5,"content":"Exactement ce que je cherchais tant au point de vue qualité que du prix, je la recommande.","reviewer_name":"Huguette F."},{"date":"December 2, 2025","title":"So lofty and comfortable","rating":5,"content":"It feels like I'm sleeping in a 5 star hotel bed every night. would 100% buy again.","reviewer_name":"Dana P."},{"date":"June 22, 2026","title":"Parfaite","rating":5,"content":"Parfait pour l’été. La couette est légère, aérienne et respirante.","reviewer_name":"Sheila L."},{"date":"September 23, 2025","title":"5","rating":5,"content":"5","reviewer_name":"Rebecca E."},{"date":"September 25, 2024","title":"Légère et chaude","rating":4,"content":"Idéale pour l’automne et l’hiver. Je recommande.","reviewer_name":"Gérald D."},{"date":"January 20, 2026","title":"Très confortable","rating":5,"content":"J’adore cette douillette. Légère et chaude , elle est parfaite!","reviewer_name":"Celine B."},{"date":"April 21, 2026","tags":["Appearance"],"title":"Parfaite pour les entre-saisons","rating":5,"content":"Couette parfaite pour le printemps et l’automne et même le début de l’hiver. Pour ceux qui ont toujours chaud vous l’aimerez tout l’hiver. Superbe texture et qualité","reviewer_name":"Anne-Marie L."},{"date":"July 9, 2025","title":"légère","rating":5,"content":"appréciée","reviewer_name":"Francine M."},{"date":"July 22, 2024","title":"So fluffy!","rating":5,"content":"This duvet is so fluffy and I absolutely love it. It has the over-stuffed cozy look and feel when it's in the duvet cover which I have always wanted in my bedding. I am a very hot sleeper and I find that I am still ok with this duvet on me (at least partially) in July. I washed it as soon as I got it and hung it up to dry, which went well. I just feel so cozy in bed now, and I'm really happy with this purchase.","reviewer_name":"Andrea G."},{"date":"January 27, 2026","title":"Couette","rating":5,"content":"Légère et confortable","reviewer_name":"Lucie R."},{"date":"January 19, 2026","title":"Une couette parfaite","rating":5,"content":"Je suis très satisfaite de cette couette. Elle est légère, chaude mais elle s’adapte parfaitement à la température ambiante. On dors avec elle comme si un nuage nous enveloppe.","reviewer_name":"Isabelle A."},{"date":"March 2, 2026","tags":["Value"],"title":"Excellent produit","rating":5,"content":"Excellent produit","reviewer_name":"Renee M."}],"target_countries":"US","canonical_url":"https://www.simons.ca/en/bedding/duvets/tenceltm-lyocell-symphonie-duvet-cooling-casing--8819-1241040?colourId=0","deep_research":{"dimensions":{"competitive_value":{"title":"How it stacks up against other cooling duvets","entries":{"simba_hybrid_3_in_1_duvet":"The Simba Hybrid 3-in-1 cooling duvet, which uses patented Stratos phase-change technology, starts at £249 for a single and £349 for a double; its price highlights that the Simons duvet at $49.95 CAD — roughly one-tenth the cost for a single — offers a minimal-material cooling solution for those who want Tencel thermoregulation without the tech premium.","tencel_duvet_covers_bare_home_dorma_adelina_juniper":"A basic Tencel duvet cover set from Bare Home retails at $70.71 USD on sale, while the Dorma Adelina cover costs £215 and the Juniper Large Duvet Cover is $340 USD — all are covers without fill — making the Simons duvet’s $49.95 CAD price for a complete 300-thread-count Tencel insert with recycled polyester fill dramatically less expensive than even the most affordable cover-only option.","harbor_house_living_cooling_reversible_tencel_comforter":"The Harbor House comforter pairs a nylon shell with Tencel fill at $159.99 USD; the Simons duvet delivers a more breathable, moisture-wicking 300-thread-count Tencel casing at $49.95 CAD, offering a superior shell material at roughly one-third the cost."},"entry_quotes":{"simba_hybrid_3_in_1_duvet":[{"url":"https://www.expertreviews.co.uk/sleep/pillows-duvets/simba-hybrid-3-in-1-duvet-review","quote":"prices starting at £249 for a single"}],"tencel_duvet_covers_bare_home_dorma_adelina_juniper":[{"url":"https://www.target.com/p/tencel-lyocell-duvet-cover-set-by-bare-home/-/A-90107089","quote":"$70.71 reg $103.99"},{"url":"https://www.dunelm.com/product/dorma-adelina-tencel-duvet-cover-pillowcase-set-1000293946?defaultSkuId=31047376","quote":"£215"},{"url":"https://jun-per.com/en-au/products/the-large-duvet-cover-tencel-percale-snow-white","quote":"$340"}],"harbor_house_living_cooling_reversible_tencel_comforter":[{"url":"https://www.harborhouseliving.com/products/cooling-reversible-tencel-comforter-blanket","quote":"$159.99 USD"},{"url":"https://www.harborhouseliving.com/products/cooling-reversible-tencel-comforter-blanket","quote":"Shell: 90% nylon, 10% spandex"},{"url":"https://jun-per.com/en-au/products/the-large-duvet-cover-tencel-percale-snow-white","quote":"Unique physical properties of TENCEL™ Lyocell makes it wick away moisture efficiently"}]},"entry_sources":{"simba_hybrid_3_in_1_duvet":["https://www.expertreviews.co.uk/sleep/pillows-duvets/simba-hybrid-3-in-1-duvet-review"],"tencel_duvet_covers_bare_home_dorma_adelina_juniper":["https://www.target.com/p/tencel-lyocell-duvet-cover-set-by-bare-home/-/A-90107089","https://www.dunelm.com/product/dorma-adelina-tencel-duvet-cover-pillowcase-set-1000293946?defaultSkuId=31047376","https://jun-per.com/en-au/products/the-large-duvet-cover-tencel-percale-snow-white"],"harbor_house_living_cooling_reversible_tencel_comforter":["https://www.harborhouseliving.com/products/cooling-reversible-tencel-comforter-blanket","https://jun-per.com/en-au/products/the-large-duvet-cover-tencel-percale-snow-white"]}},"cooling_mechanism":{"title":"How Tencel lyocell actually keeps you cool","entries":{"nanofibrillar_pore_network":"The fibre’s cooling power is built into its nano-scale architecture: a compact core, a porous middle zone, and a semi-permeable skin form a moisture-absorbing capillary network that buffers vapour release — this physical structure, not a chemical finish, is what gives the duvet casing its persistent thermoregulation.","sub_surface_moisture_absorption":"TENCEL™ lyocell fibres wick sweat directly into the fibre’s interior rather than letting it pool on the fabric surface, so the duvet casing stays dry and cool against the skin even on humid nights — unlike cotton, which holds moisture in its structure but feels damp to the touch.","long_lasting_cooling_performance":"Lenzing’s microfibre technology embeds the cooling capability into the fibre itself — it won’t wash out or degrade — so the duvet’s thermoregulation stays effective through years of machine washing, not relying on a temporary coating like some synthetic wicking finishes.","round_smooth_fibre_for_cool_touch_feel":"Each TENCEL™ lyocell filament is round and smooth, giving the 300-thread-count casing a naturally silky, cool-to-the-touch sensation that signals immediate thermal relief — a tactile advantage that conventional cotton, with its flat, twisted fibres, cannot replicate.","50_greater_moisture_capacity_than_cotton":"TENCEL™ lyocell absorbs up to 50% more moisture than cotton, which means it removes perspiration from your skin faster and in greater volume, sustaining the evaporative cooling effect through the night instead of saturating and becoming clammy like a cotton casing would.","dynamic_moisture_regulation_tied_to_body_heat":"TENCEL™ lyocell fibres automatically adjust their moisture absorption rate in response to changes in body temperature — absorbing more when you warm up, less when you cool down — so the casing works with your natural sleep cycle to prevent both overheating and overcooling.","reduced_bacterial_growth_from_no_surface_moisture":"Because moisture is absorbed into the fibre rather than sitting on the surface, the duvet casing inhibits the growth of odour-causing bacteria that create a stale, clammy feel — lab tests show TENCEL™ lyocell supports significantly lower bacterial growth than cotton or polyester, keeping the cooling sensation fresher between washes."},"entry_quotes":{"nanofibrillar_pore_network":[{"url":"https://www.yumpu.com/en/document/view/13650573/visualisation-of-the-nano-structure-of-tencelr-lyocell-and-lenzing","quote":"The climate management function seems to be related to the porous water binding internal structure of Lyocell fibres."}],"sub_surface_moisture_absorption":[{"url":"https://www.getleisurely.com/journal/tencel-bedding-keep-cool","quote":"The moisture is absorbed into the fabric rather than resting on the fabric’s surface, which is why your TENCEL™ Lyocell sheets feel so especially cool and dry even on the most humid night."},{"url":"https://cdn2.hubspot.net/hubfs/4570413/Culp%20Home%20Fashions/Technology/PDF/COOL/Tencel.pdf","quote":"Moisture is immediately transported into the inside of the fiber. Thus, no moisture film, which can sustain bacterial growth, forms on the fiber."}],"long_lasting_cooling_performance":[{"url":"https://www.getleisurely.com/journal/tencel-bedding-keep-cool","quote":"Lenzing have created TENCEL™ Lyocell with microfibre technology that makes the fabric long-lasting, so your TENCEL™ Lyocell sheets will keep you cool for years to come."}],"round_smooth_fibre_for_cool_touch_feel":[{"url":"https://www.yumpu.com/en/document/view/13650573/visualisation-of-the-nano-structure-of-tencelr-lyocell-and-lenzing","quote":"TENCEL ® (Lyocell) is a round fibre with a smooth surface, which makes the s of t touch."}],"50_greater_moisture_capacity_than_cotton":[{"url":"https://koalahug.eu/en/benefits-of-tencel-lyocell-bedding/","quote":"TENCEL™ Lyocell absorbs up to 50% more moisture than cotton and releases it quickly again, creating a dry and fresh sleeping environment."}],"dynamic_moisture_regulation_tied_to_body_heat":[{"url":"https://www.getleisurely.com/journal/tencel-bedding-keep-cool","quote":"The microscopic TENCEL™ Lyocell fibres are structured to regulate the absorption and release of moisture from the body. This allows TENCEL™ Lyocell to work with the body’s natural temperature regulating function. As the body warms or cools, the fabric responds accordingly absorbing more or less moisture."}],"reduced_bacterial_growth_from_no_surface_moisture":[{"url":"https://www.getleisurely.com/journal/tencel-bedding-keep-cool","quote":"When tested against cotton and polyester for bacteria growth, TENCEL™ showed significantly lower growth rates of the three most common bacteria types."},{"url":"https://cdn2.hubspot.net/hubfs/4570413/Culp%20Home%20Fashions/Technology/PDF/COOL/Tencel.pdf","quote":"With TENCEL® fibers, the formation of bacteria is significantly reduced. Moisture is immediately transported into the inside of the fiber. Thus, no moisture film, which can sustain bacterial growth, forms on the fiber."}]},"entry_sources":{"nanofibrillar_pore_network":["https://www.yumpu.com/en/document/view/13650573/visualisation-of-the-nano-structure-of-tencelr-lyocell-and-lenzing"],"sub_surface_moisture_absorption":["https://www.getleisurely.com/journal/tencel-bedding-keep-cool","https://cdn2.hubspot.net/hubfs/4570413/Culp%20Home%20Fashions/Technology/PDF/COOL/Tencel.pdf"],"long_lasting_cooling_performance":["https://www.getleisurely.com/journal/tencel-bedding-keep-cool"],"round_smooth_fibre_for_cool_touch_feel":["https://www.yumpu.com/en/document/view/13650573/visualisation-of-the-nano-structure-of-tencelr-lyocell-and-lenzing"],"50_greater_moisture_capacity_than_cotton":["https://koalahug.eu/en/benefits-of-tencel-lyocell-bedding/","https://au.koala.com/blogs/sleep/what-is-tencel-lyocell"],"dynamic_moisture_regulation_tied_to_body_heat":["https://www.getleisurely.com/journal/tencel-bedding-keep-cool"],"reduced_bacterial_growth_from_no_surface_moisture":["https://www.getleisurely.com/journal/tencel-bedding-keep-cool","https://cdn2.hubspot.net/hubfs/4570413/Culp%20Home%20Fashions/Technology/PDF/COOL/Tencel.pdf"]}},"recycled_fill_details":{"title":"Recycled polyester fill benefits and sustainability","entries":{"35_bottles_per_kilogram_of_fill":"It takes about 35 recycled PET bottles to produce one kilogram of recycled polyester fiber, giving the duvet a tangible 'bottle redemption' metric—each unit effectively repurposes plastic that would otherwise remain in landfills for centuries, a concrete eco-metric for sustainability-focused buyers.","post_consumer_pet_bottle_origin":"The recycled polyester fill is manufactured from discarded PET plastic bottles, which are shredded, melted, and re-spun into fiber—transforming landfill-bound waste into a plush insulation layer and reducing the duvet's environmental footprint compared to virgin polyester production.","hypoallergenic_moisture_resistance":"Recycled polyester fiber absorbs less than 1% moisture, making it naturally inhospitable to dust mites, mold, and bacteria—this inherent material property is what makes the fill hypoallergenic and odourless, offering an advantage for allergy-prone sleepers beyond simple synthetic material claims."},"entry_quotes":{"35_bottles_per_kilogram_of_fill":[{"url":"https://familon.com/pages/materials","quote":"About 35 PET bottles are needed to produce one kilo"}],"post_consumer_pet_bottle_origin":[{"url":"https://vnpolyfiber.com/pet-bottle-to-recycled-polyester-fiber-the-complete-supply-chain-guide/","quote":"Every GRS-certified recycled polyester staple fiber (rPSF) bale begins the same way—as a discarded PET plastic bottle."}],"hypoallergenic_moisture_resistance":[{"url":"https://vnpolyfiber.com/product/wholesale-recycled-pillow-filling-a-technical-guide-to-15d-and-7d-hcs-fiber/","quote":"Polyester absorbs less than 1% moisture, making it an inhospitable environment for fungus and bacteria."},{"url":"https://vnpolyfiber.com/product/wholesale-recycled-pillow-filling-a-technical-guide-to-15d-and-7d-hcs-fiber/","quote":"Hypoallergenic: Naturally resistant to dust mites and mold."}]},"entry_sources":{"35_bottles_per_kilogram_of_fill":["https://familon.com/pages/materials"],"post_consumer_pet_bottle_origin":["https://vietnamrecycledfiber.com/blog/recycled-polyester-fill/","https://vnpolyfiber.com/pet-bottle-to-recycled-polyester-fiber-the-complete-supply-chain-guide/"],"hypoallergenic_moisture_resistance":["https://vnpolyfiber.com/product/wholesale-recycled-pillow-filling-a-technical-guide-to-15d-and-7d-hcs-fiber/"]}},"thread_count_explained":{"title":"What 300 thread count means for Tencel","entries":{"soft_from_night_one":"Unlike cotton, which requires multiple washes to soften, a 300-thread-count TENCEL lyocell casing feels silky-smooth and soft from the very first night because the lyocell fiber is naturally finer than cotton — there’s simply less surface friction against your skin.","50_more_moisture_absorption":"At 300 threads per square inch, the casing remains open enough for TENCEL’s moisture-wicking to operate fully — the fiber absorbs roughly 50% more moisture than cotton and releases it quickly, so the duvet surface stays dry even in warmer sleep environments.","feels_softer_than_600_tc_cotton":"Because the fiber structure is intrinsically smoother, a 300-thread-count TENCEL casing delivers a more luxurious skin feel than a 600-thread-count cotton duvet cover — the higher cotton count can’t match the native slipperiness of the lyocell surface.","fiber_quality_leads_thread_count_supports":"Think of the 300 thread count as a structural enabler rather than a quality claim — the duvet’s cool, smooth character comes from the Lenzing TENCEL lyocell fibers, which naturally feel silky at any viable count; the 300 TC simply gives the fabric enough density to hold its shape without stifling the fiber’s temperature-regulating breathability."},"entry_quotes":{"soft_from_night_one":[{"url":"https://www.mattressnut.com/tencel-sheets/","quote":"Tencel sheets feel noticeably soft from the first night, without the break-in period that cotton sheets often require."},{"url":"https://mattressmiracle.ca/blogs/mattress-miracle-blog/softest-sheets-material-weave-guide","quote":"Each lyocell fibre is naturally finer than a cotton fibre, which is why a 300 thread count TENCEL sheet often feels softer than a 600 thread count cotton sheet."}],"50_more_moisture_absorption":[{"url":"https://www.mattressnut.com/lyocell-vs-cotton-sheets/","quote":"its moisture-absorption rate is about 50% higher than cotton."}],"feels_softer_than_600_tc_cotton":[{"url":"https://koalahug.eu/en/thread-count-in-bedding-what-really-matters-for-quality/","quote":"More importantly, a 300TC duvet cover made from 100% TENCEL™ sateen can feel softer than a 600TC cotton duvet cover."}],"fiber_quality_leads_thread_count_supports":[{"url":"https://koalahug.eu/en/thread-count-in-bedding-what-really-matters-for-quality/","quote":"With TENCEL™, fiber quality tells the real story. Thread count plays a supporting role—not the leading one."}]},"entry_sources":{"soft_from_night_one":["https://www.mattressnut.com/tencel-sheets/","https://mattressmiracle.ca/blogs/mattress-miracle-blog/softest-sheets-material-weave-guide"],"50_more_moisture_absorption":["https://www.mattressnut.com/lyocell-vs-cotton-sheets/","https://koalahug.eu/en/thread-count-in-bedding-what-really-matters-for-quality/"],"feels_softer_than_600_tc_cotton":["https://koalahug.eu/en/thread-count-in-bedding-what-really-matters-for-quality/"],"fiber_quality_leads_thread_count_supports":["https://koalahug.eu/en/thread-count-in-bedding-what-really-matters-for-quality/"]}}}},"handle":"tenceltm-lyocell-symphonie-duvet-cooling-casing-8819-1241040","storefront_path":"/en/bedding/duvets/tenceltm-lyocell-symphonie-duvet-cooling-casing--8819-1241040","storefront_url":"https://ai.simons.ca/en/bedding/duvets/tenceltm-lyocell-symphonie-duvet-cooling-casing--8819-1241040"}}