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Exactly what I was looking for. Love the material!","reviewer_name":"Nancy G."},{"date":"July 16, 2026","tags":["Fabric","Comfort"],"title":"Sooo Soft Supima Long Nightgown","rating":5,"content":"The nightgown is amazingly soft and comfortable. It also keeps me cool enough overnight during age related heat sessions lol","reviewer_name":"Cynthia W."},{"date":"November 16, 2025","title":"Tissu confortable","rating":4,"content":"Bien coupée, agréable à porter. Par contre, la couleur est trop terne à mon goût. Un peu plus d’éclat aurait aidé. Je l’ai gardée pour son confort en dépit de la couleru","reviewer_name":"Louise L."},{"date":"March 30, 2026","tags":["Fabric","Comfort"],"title":"C'est ma troisième robe de","rating":5,"content":"C'est ma troisième robe de ce modèle, car j'aime bien sa douceur le confort.","reviewer_name":"Gaetane G."},{"date":"April 20, 2026","tags":["Fit"],"title":"Beautiful cotton nightgown","rating":5,"content":"This feels so nice on. The fabric is light and breathable, will be perfect for hot summer nights. Fits a little bit small - I would have preferred a looser fit for a nightgown. Sizing up would be too loose.","reviewer_name":"Karen S."},{"date":"November 4, 2025","title":"Comfy nightie","rating":5,"content":"Love the style & fit of these nighties. I have them in cotton & linen/cotton.","reviewer_name":"Diane S."},{"date":"October 3, 2025","title":"Super robe de nuit","rating":5,"content":"J’avais déjà la bourgogne et comme je l’adorais, j’ai acheté la marine et je passe de très belles nuits.","reviewer_name":"Gina P."},{"date":"November 27, 2025","title":"Recommend the nightie","rating":5,"content":"Very good nightgown.","reviewer_name":"Constanta D."},{"date":"July 20, 2026","tags":["Fit"],"title":"Lovely","rating":5,"content":"The fabric is so soft. Fabric has enough stretch but maintains shape when worn.","reviewer_name":"Brenda R."},{"date":"August 10, 2025","tags":["Fabric","Comfort"],"title":"Simple but classic","rating":5,"content":"Lovely fabric with a smooth feel and just the right amount of stretch. Comfortable but elegant. I wish there was a matching robe available.","reviewer_name":"Kim T."},{"date":"August 6, 2025","title":"Loved it so much I bought another one","rating":5,"content":"I was looking for a v-neck long night gown in stretchy fabric and was happy to find this one at Simon’s. The colour is rich and I like the slit at the side, it makes it easier to walk ;)","reviewer_name":"Elizabeth F."},{"date":"June 14, 2026","title":"Tissu très doux et confortable","rating":5,"content":"Je l'adore! Taille parfaite. Beau tissu. Je l'ai tellement aimée que j'ai commandé les 2 autres couleurs disponibles.","reviewer_name":"Monique M."},{"date":"July 9, 2026","tags":["Comfort"],"title":"Habille bien","rating":5,"content":"Très confortable et belle longueur, un peu passe partout on peut la porter tôt en soirée comme robe d’intérieur","reviewer_name":"Johanne L."},{"date":"April 14, 2026","tags":["Fabric"],"title":"Fabric not right","rating":2,"content":"The fabric had a rougher texture than I expected for Supima cotton","reviewer_name":"Mary K."},{"date":"July 4, 2026","tags":["Fabric","Comfort"],"title":"Très belle robe de nuit","rating":5,"content":"Confortable, tissu respirant et très doux. J'ai commandé les autres couleurs tellement je l'adore.","reviewer_name":"Monique M."},{"date":"November 24, 2025","tags":["Fabric"],"title":"Nightgown","rating":5,"content":"Beautiful and so soft.","reviewer_name":"Francine B."},{"date":"November 11, 2025","tags":["Fabric","Comfort"],"title":"Fibre content","rating":5,"content":"Love the feel of this nightgown. I have very sensitive skin and the supima cotton is very comfortable to sleep in.","reviewer_name":"Alberta G."},{"date":"December 6, 2025","tags":["Fabric","Comfort"],"title":"FANTASTIC!","rating":5,"content":". . . the fabric is delicious and elegant and actually helps me to sleep. . . . . it feels like a dress so I am \"dressed\" when I am wearing it before showering and dressing for the day. . . . . . !!!!!!!","reviewer_name":"Andrea S."},{"date":"June 18, 2026","title":"Tres jolie et confortable","rating":4,"content":"Juste un peu pour grandeur large.","reviewer_name":"Diane 1."},{"date":"November 1, 2025","tags":["Fabric","Comfort"],"title":"Great nightgown","rating":5,"content":"This nightgown is very comfortable. Wore it last night for first time. 95% cotton yet a cozy weight, thicker than I might have imagined. I like it very much and nice to buy from a Canadian company. First purchase from Simons","reviewer_name":"Susan E."},{"date":"November 26, 2025","title":"Super soft and comfortable","rating":5,"content":"Perfect weight for sleeping and great coverage for lounging! I like it so much I ordered a second.","reviewer_name":"Bonnie d."},{"date":"September 18, 2025","title":"Super","rating":5,"content":"Tellement confo","reviewer_name":"CHANTAL T."}],"target_countries":"US","canonical_url":"https://www.simons.ca/en/women-underwear/sleepwear-loungewear/nighties-onesies/supima-cotton-long-nightgown--6736-221872?colourId=12","reddit_insights":{"match":{"notes":"Only one thread mentions a Miiyu nightgown (modal fabric, not Supima cotton) as an old favourite. No specific discussion of the Miiyu Supima® Cotton Long Nightgown was found, resulting in low confidence.","confidence":0.3,"matched_terms":["Miiyu","nightgown"]},"status":"ok","coverage":{"subreddits":["femalefashionadvice"],"threads_used":1},"evidence":{"items":[{"url":"https://www.reddit.com/r/femalefashionadvice/comments/112e5fn/lets_talk_loungewear_and_sleepwear/j8k7b77/","type":"comment","title":"Miiyu modal nightgown mentioned as an old favourite","author":"___butthead___","ref_id":"r_e_2","thread":{"url":"https://www.reddit.com/r/femalefashionadvice/comments/112e5fn/lets_talk_loungewear_and_sleepwear/","title":"lets talk loungewear and sleepwear","subreddit":"femalefashionadvice"},"excerpt":"I also have a modal nightgown from Simons (Miiyu) that is an old favourite.","subreddit":"femalefashionadvice"}]},"generated_at":"2024-02-20T12:00:00Z","conversation_summary":{"gotchas":[],"one_liner":"A Reddit user mentions a Miiyu nightgown as a comfortable favourite, though no specific feedback exists for the Supima cotton long nightgown.","sentiment":{"label":"positive","score":0.5,"explanation":"One user described their Miiyu modal nightgown as an 'old favourite,' indicating personal satisfaction."},"use_cases":[{"evidence":["r_e_2"],"use_case":"Sleeping"}],"top_themes":[{"theme":"Nightgown as comfortable sleepwear","stance":"positive","evidence":["r_e_2"]}],"comparisons":[],"common_questions":[]}},"product_insights":[{"title":"Verified claims","type":"key_value","items":[{"value":"Gets softer with every wash when fabric softener is skipped.","key":"Softness","provenance":{"productData":false,"reviews":false,"qna":false,"urls":["https://supima.com/wp-content/uploads/2019/07/2019-SUPIMA-IDENTITY-GUIDELINES.pdf","https://attrue.com/blogs/attrue-journal/how-to-wash-supima-cotton-t-shirts-care-guide","https://boringlabel.com/yarn/supima-cotton/t-shirt-manufacturing","https://boringlabel.com/compare/supima-vs-cotton"]}},{"value":"Withstands 50 washes with minimal pilling, fading, and shrinkage.","key":"Wash durability","provenance":{"productData":false,"reviews":false,"qna":false,"urls":["https://boringlabel.com/yarn/supima-cotton/t-shirt-manufacturing","https://boringlabel.com/yarn/supima-cotton/premium-apparel","https://runtangtex.com/cotton-vs-cotton-spandex-stretch-recovery-cost/","https://trylayers.com/blogs/news/supima-cotton-guide"]}},{"value":"96% Supima cotton (less than 1% of global cotton) with 4% spandex.","key":"Material","provenance":{"productData":true,"reviews":false,"qna":false,"urls":["https://natuclothes.com/materials/pima-vs-supima-cotton/","https://supima.com/wp-content/uploads/2019/07/2019-SUPIMA-IDENTITY-GUIDELINES.pdf","https://boringlabel.com/yarn/supima-cotton/premium-apparel","https://runtangtex.com/cotton-vs-cotton-spandex-stretch-recovery-cost/"]}},{"value":"ISO 105-C06 wash fastness grade 4.5–5; deep shades sustain grade 4–4.5 through 30+ home washes and the fabric keeps its color through a 50-wash lifespan.","key":"Colorfastness","provenance":{"productData":false,"reviews":false,"qna":false,"urls":["https://boringlabel.com/yarn/supima-cotton/t-shirt-manufacturing","https://boringlabel.com/compare/supima-vs-cotton"]}},{"value":"4% spandex ensures 8/10 shape recovery and under 3% dimensional shift after 50 washes.","key":"Shape recovery","provenance":{"productData":false,"reviews":false,"qna":false,"urls":["https://boringlabel.com/yarn/supima-cotton/t-shirt-manufacturing","https://runtangtex.com/cotton-vs-cotton-spandex-stretch-recovery-cost/","https://runtangtex.com/stretch-fabric-spandex-ratio-knit-recovery/","https://global.llbean.com/llb/shop/70146.html?cgid=502983&page=supima-cotton-nightgown-v-neck-three-quarter-sleeve"]}},{"value":"Wide straps stretch with the 4% spandex to distribute weight without digging.","key":"Strap fit","provenance":{"productData":false,"reviews":false,"qna":false,"urls":[]}},{"value":"Sleeveless design eliminates underarm binding and friction, especially for people who toss and turn during sleep or lounge for long stretches.","key":"Underarm comfort","provenance":{"productData":false,"reviews":false,"qna":false,"urls":[]}},{"value":"Sale price CDN$19.99 saves 78% vs L.L.Bean's $89.95 Supima gown","key":"Price advantage","provenance":{"productData":true,"reviews":false,"qna":false,"urls":["https://www.llbean.ca/llb/shop/70146.html?cgid=617-503113&page=supima-cotton-nightgown-v-neck-three-quarter-sleeve","https://www.llbean.com/llb/shop/89517?page=womens-supima-nightgown-short-sleeve"]}},{"value":"Long side vents and Canadian design differentiate it from L.L.Bean's comparable Supima style.","key":"Design and origin","provenance":{"productData":false,"reviews":false,"qna":false,"urls":["https://www.llbean.com/llb/shop/70146?feat=Womens+Long+Sleeve+Nightgowns-OPT&page=womens-long-sleeve-nightgowns","https://www.lyst.com/en-ca/clothing/miiyu-supima-cotton-long-nightgown-1/"]}},{"value":"Supima fabric offers pilling resistance and color retention on par with L.L.Bean's","key":"Fabric durability","provenance":{"productData":false,"reviews":false,"qna":false,"urls":["https://boringlabel.com/yarn/supima-cotton/t-shirt-manufacturing","https://trylayers.com/blogs/news/supima-cotton-guide","https://boringlabel.com/yarn/supima-cotton/premium-apparel"]}},{"value":"Cold wash (30°C max), gentle cycle, and low-heat drying maintain fit and softness for 50 washes; high heat is the main cause of shrinkage and can lead to 3–5% shrink.","key":"Wash routine","provenance":{"productData":false,"reviews":false,"qna":false,"urls":["https://attrue.com/blogs/attrue-journal/how-to-wash-supima-cotton-t-shirts-care-guide","https://nihsamah.com/blogs/latest-updates/why-cotton-nighties-feel-softer-after-every-wash-fabric-explained","https://boringlabel.com/yarn/supima-cotton/t-shirt-manufacturing"]}},{"value":"Deep shades sustain wash-fastness grade 4–4.5 through 30+ home washes; skipping fabric softener preserves the cotton's softness and breathability.","key":"Care","provenance":{"productData":false,"reviews":false,"qna":false,"urls":["https://boringlabel.com/yarn/supima-cotton/t-shirt-manufacturing"]}},{"value":"Proper care extends life to ~50 washes, halving cost-per-wear.","key":"Value","provenance":{"productData":false,"reviews":false,"qna":false,"urls":["https://boringlabel.com/yarn/supima-cotton/t-shirt-manufacturing"]}},{"value":"Long side vents add ventilation, and skipping fabric softener preserves breathability and the airy, skin-friendly hand.","key":"Breathability","provenance":{"productData":false,"reviews":false,"qna":false,"urls":["https://runtangtex.com/stretch-fabric-spandex-ratio-knit-recovery/","https://www.llbean.com/llb/shop/70146?feat=Womens+Long+Sleeve+Nightgowns-OPT&page=womens-long-sleeve-nightgowns","https://attrue.com/blogs/attrue-journal/how-to-wash-supima-cotton-t-shirts-care-guide"]}},{"value":"Sleeveless design, wide straps, and Supima's smooth fibers reduce underarm friction and help prevent irritation for sensitive skin.","key":"Skin sensitivity","provenance":{"productData":false,"reviews":false,"qna":false,"urls":["https://boringlabel.com/yarn/supima-cotton/t-shirt-manufacturing","https://runtangtex.com/cotton-vs-cotton-spandex-stretch-recovery-cost/"]}},{"value":"The V-neck is set wide enough to sit securely between the straps without pulling them inward, so the straps stay on the shoulders.","key":"Neckline","provenance":{"productData":false,"reviews":false,"qna":false,"urls":[]}},{"value":"The Supima jersey is in the 180–200 GSM range, and buyers describe the fabric as light and breathable for hot summer nights.","key":"Fabric weight and breathability","provenance":{"productData":false,"reviews":false,"qna":false,"urls":["https://boringlabel.com/yarn/supima-cotton/t-shirt-manufacturing"]}},{"value":"The nightgown is a full-length sleeveless silhouette, so the wide straps bear all top-anchor tension during wear and movement.","key":"Length / silhouette","provenance":{"productData":false,"reviews":false,"qna":false,"urls":[]}}]},{"title":"Product record","type":"key_value","items":[{"value":"Supima®  Cotton Long Nightgown","key":"Title","provenance":{"productData":true,"reviews":false,"qna":false,"urls":[]}},{"value":"Miiyu","key":"Brand","provenance":{"productData":true,"reviews":false,"qna":false,"urls":[]}},{"value":"69 CAD","key":"Price","provenance":{"productData":true,"reviews":false,"qna":false,"urls":[]}},{"value":"In stock","key":"Availability","provenance":{"productData":true,"reviews":false,"qna":false,"urls":[]}}]}],"handle":"supima-cotton-long-nightgown-6736-221872","storefront_path":"/en/women-underwear/sleepwear-loungewear/nighties-onesies/supima-cotton-long-nightgown--6736-221872","storefront_url":"https://ai.simons.ca/en/women-underwear/sleepwear-loungewear/nighties-onesies/supima-cotton-long-nightgown--6736-221872"}}