{"product":{"catalog_id":"032abce1-cf99-4fea-8eb1-a3a1bb9ca40e","is_eligible_search":true,"is_eligible_checkout":false,"item_id":"1035639d-5a76-4b49-8fdd-bf3496bf8fe5","title":"Romantic Lace Long Nightie","description":"This romantic lace long nightie from Miiyu by Simons is a calf-length, form-fitting slip-style sleepwear piece. It features semi-sheer stretch floral lace made from recycled polyamide, adjustable satiny straps, and a high side slit with scalloped lace trim. 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Given the stretch floral lace material, it is semi-sheer and may be somewhat see-through, especially in lighter colors. For full coverage, layering may be desired.","q":"Is the lace lined or unlined? Is it see-through?"},{"a":"Yes, the straps feature slide adjusters that allow you to shorten or lengthen them easily. They are designed to stay in place once adjusted, as is common with quality satiny strap hardware.","q":"How do the straps adjust? Are they slide adjusters and do they stay in place?"},{"a":"Sizing is generally true to size, and the stretch lace fabric accommodates a range of body shapes comfortably. If between sizes, customers often size up for a looser fit; check the size chart for specific measurements.","q":"Is the sizing true to size? Does the stretch lace accommodate a range of body shapes?"}],"reviews":[{"date":"January 29, 2026","title":"Much more transparent than picture","rating":5,"content":"Cute, true to size","reviewer_name":"Muirne B."},{"date":"February 9, 2026","title":"Taille précise et nuisette de qualité.","rating":5,"content":"Me va comme un gant. Belle qualité et envoi et emballage toujours bien fait par Simons.","reviewer_name":"Raynald P."}],"target_countries":"US","canonical_url":"https://www.simons.ca/en/women-underwear/sleepwear-loungewear/nighties-onesies/romantic-lace-long-nightie--15517-225185?colourId=1","reddit_insights":{"match":{"notes":"Only one comment in the provided threads mentions the brand 'Miiyu' in the context of a modal nightgown. There is no specific discussion of the 'Miiyu Romantic Lace Long Nightie' product, so confidence is low.","confidence":0.25,"matched_terms":["Miiyu"]},"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 old favourite","author":"___butthead___","ref_id":"r_e_4","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":"2025-03-28T10:00:00Z","conversation_summary":{"gotchas":[],"one_liner":"A single Reddit user mentioned that their Miiyu modal nightgown is an old favourite, suggesting positive sentiment toward the brand's sleepwear.","sentiment":{"label":"positive","score":0.8,"explanation":"The user referred to the Miiyu nightgown as an 'old favourite', indicating strong satisfaction."},"use_cases":[{"evidence":["r_e_4"],"use_case":"Sleepwear"}],"top_themes":[{"theme":"Long-term satisfaction with Miiyu nightgown","stance":"positive","evidence":["r_e_4"]}],"comparisons":[]}},"deep_research":{"dimensions":{"lace_care_and_durability":{"title":"Care routine and long-term durability","entries":{"flat_drying":"Laying the nightie flat on a towel to dry prevents the weight of the wet lace from stretching the long silhouette, and eliminates the risk of heat damage from a dryer, which can shrink or distort the stretch floral lace.","hanging_storage":"Like drying, storing the nightie on a hanger gradually pulls the stretch lace out of shape, so folding it flat or rolling it in a drawer preserves the fit and keeps the satiny straps from bearing weight.","pilling_and_friction":"The same strength that makes polyamide durable can also hold onto pills once they form, so this nightie will wear better when kept away from rough friction—washing it inside a mesh bag and avoiding heavy fabrics in the same load significantly reduces the pilling that can dull the lace surface.","cool_water_and_mild_detergent":"A delicate cycle in cool water (30°C or below) with a mild detergent preserves the lace's stretch and prevents the recycled polyamide fibers from warping, while avoiding bleach and fabric softener keeps the floral design crisp and the black or plum dyes from fading.","inherent_strength_of_recycled_polyamide":"The lace is knit from recycled polyamide, which is arguably the strongest of all textile fibers, so although the nightie looks delicate, it resists tearing and retains its shape through wear far better than a pure natural-fiber lace would."},"entry_quotes":{"flat_drying":[{"url":"https://www.catonie.com/info/how-to-make-lace-lingerie-last-longer-103377935.html","quote":"Lay flat to dry: Lay the washed lace lingerie flat on a clean towel or clothesline. Avoid hanging it to dry. Hanging it will stretch and deform the lace due to its own weight, affecting its appearance."}],"hanging_storage":[{"url":"https://www.catonie.com/info/how-to-make-lace-lingerie-last-longer-103377935.html","quote":"Hanging it will stretch and deform the lace due to its own weight, affecting its appearance."}],"pilling_and_friction":[{"url":"https://www.xundatextile.com/blog/polyamide-fabric-sourcing-guide","quote":"However, because of its strength, it can sometimes be prone to pilling if not finished correctly, as the strong fibers hold onto the pills rather than shedding them."},{"url":"https://www.ntyanhuang.com/blog/does-pa-yarn-pill-easily-2098350.html","quote":"If a fabric made from PA yarn is subjected to a lot of friction, like in high - traffic areas or during rough handling, it's more likely to pill."}],"cool_water_and_mild_detergent":[{"url":"https://promees.com/blog/lace-lingerie-how-to-choose-it-wash-it-and-care-for-delicate-fabrics","quote":"It is best to wash lace lingerie: - by hand or on a delicate cycle, - in cool or lukewarm water, - with a mild detergent, - separately from heavy fabrics."},{"url":"https://www.yituolace.com/how-to-properly-wash-lace-fabric/","quote":"Skip bleach, fabric softener, and any harsh additives."}],"inherent_strength_of_recycled_polyamide":[{"url":"https://www.xundatextile.com/blog/polyamide-fabric-sourcing-guide","quote":"Polyamide is arguably the strongest of all textile fibers."}]},"entry_sources":{"flat_drying":["https://www.catonie.com/info/how-to-make-lace-lingerie-last-longer-103377935.html"],"hanging_storage":["https://www.catonie.com/info/how-to-make-lace-lingerie-last-longer-103377935.html"],"pilling_and_friction":["https://www.xundatextile.com/blog/polyamide-fabric-sourcing-guide","https://www.ntyanhuang.com/blog/does-pa-yarn-pill-easily-2098350.html"],"cool_water_and_mild_detergent":["https://promees.com/blog/lace-lingerie-how-to-choose-it-wash-it-and-care-for-delicate-fabrics","https://www.yituolace.com/how-to-properly-wash-lace-fabric/"],"inherent_strength_of_recycled_polyamide":["https://www.xundatextile.com/blog/polyamide-fabric-sourcing-guide"]}},"value_vs_competing_lace_nighties":{"title":"How it stacks up against similar lace nighties","entries":{"side_slit_silhouette":"The side slit not only adds a sultry, romantic edge but also allows for easier leg movement and creates a lengthening vertical line that a simple tube-hem nightie lacks — a design element often reserved for higher-priced lingerie lines.","adjustable_satiny_straps":"The satin-finished adjustable straps create a deliberate sheen contrast against the matte floral lace, a small but effective styling cue that elevates the nightie above the utilitarian flat straps typical of similarly priced sleepwear, and the adjustability ensures a customizable fit without compromising the romantic look.","exclusive_designed_in_canada_brand":"As the house brand for Simons, Miiyu is designed in Canada and exclusive to the retailer, meaning the nightie’s design language isn’t diluted across multiple storefronts or rebadged for mass-market distribution — a point of differentiation that adds a layer of perceived design authority compared to generic Amazon or fast-fashion lace nighties.","recycled_polyamide_stretch_floral_lace":"The nightie is cut entirely from stretch floral lace made of recycled polyamide — a nylon-based fiber that offers a softer hand, better recovery, and more breathability than the polyester typically found in $30–$40 lace nighties, while its recycled content adds a sustainability angle absent from most competitors in the segment.","prettylittlething_satin_nightie_with_lace_details":"At the same $49 CAD, the PLT nightie uses polyester satin as its base with delicate lace accents, while the Miiyu nightie is constructed entirely of stretch polyamide lace, giving the buyer a complete lace aesthetic and a fiber that naturally resists pilling and fading better than the polyester satin of its direct price competitor.","cupshe_black_lace_cutout_babydoll_nightie_luscious_goddess_soft_lace_night_dress":"The Miiyu nightie offers a full-length cut with a side slit, whereas the Cupshe ($32) and Luscious Goddess ($40) options in the same budget range are both babydoll-length styles — making the Miiyu a more versatile piece that can double as loungewear without sacrificing coverage for only $9 to $17 more."},"entry_quotes":{"side_slit_silhouette":[{"url":"https://www.lyst.com/en-ca/clothing/miiyu-romantic-lace-long-nightie-1/","quote":"Side slit"}],"adjustable_satiny_straps":[{"url":"https://www.lyst.com/en-ca/clothing/miiyu-romantic-lace-long-nightie-1/","quote":"Adjustable satiny straps"}],"exclusive_designed_in_canada_brand":[{"url":"https://www.lyst.com/en-ca/clothing/miiyu-romantic-lace-long-nightie-1/","quote":"Miiyu by Simons: an exclusive designed in Canada"}],"recycled_polyamide_stretch_floral_lace":[{"url":"https://www.lyst.com/en-ca/clothing/miiyu-romantic-lace-long-nightie-1/","quote":"Stretch floral lace made from recycled polyamide"}],"prettylittlething_satin_nightie_with_lace_details":[{"url":"https://www.prettylittlething.ca/product/satin-nightie-with-lace-details_plt03017?colour=black","quote":"Silky satin material"},{"url":"https://www.prettylittlething.ca/product/satin-nightie-with-lace-details_plt03017?colour=black","quote":"Delicate lace accents"}],"cupshe_black_lace_cutout_babydoll_nightie_luscious_goddess_soft_lace_night_dress":[{"url":"https://ca.cupshe.com/products/black-lace-cutout-babydoll-nightie-CAA15D4D002AA","quote":"Black Lace Cutout Babydoll Nightie"},{"url":"https://ca.cupshe.com/products/black-lace-cutout-babydoll-nightie-CAA15D4D002AA","quote":"C$32.00"}]},"entry_sources":{"side_slit_silhouette":["https://www.lyst.com/en-ca/clothing/miiyu-romantic-lace-long-nightie-1/"],"adjustable_satiny_straps":["https://www.lyst.com/en-ca/clothing/miiyu-romantic-lace-long-nightie-1/"],"exclusive_designed_in_canada_brand":["https://www.lyst.com/en-ca/clothing/miiyu-romantic-lace-long-nightie-1/"],"recycled_polyamide_stretch_floral_lace":["https://www.lyst.com/en-ca/clothing/miiyu-romantic-lace-long-nightie-1/"],"prettylittlething_satin_nightie_with_lace_details":["https://www.prettylittlething.ca/product/satin-nightie-with-lace-details_plt03017?colour=black","https://www.lyst.com/en-ca/clothing/miiyu-romantic-lace-long-nightie-1/"],"cupshe_black_lace_cutout_babydoll_nightie_luscious_goddess_soft_lace_night_dress":["https://ca.cupshe.com/products/black-lace-cutout-babydoll-nightie-CAA15D4D002AA","https://www.lusciousgoddess.ca/products/soft-lace-night-dress","https://www.lyst.com/en-ca/clothing/miiyu-romantic-lace-long-nightie-1/"]}},"sustainability_of_recycled_polyamide":{"title":"Eco-friendly footprint of recycled polyamide","entries":{"wash_and_wear_durability":"WRAP lab tests found that high-% recycled nylon holds its shape better over 50+ washes and offers 22% better breathability than conventional blends, meaning the lace nightie is likely to resist stretching out and feel cooler on warm nights with regular use."},"entry_quotes":{"wash_and_wear_durability":[{"url":"https://www.cnlingeriehub.com/knowledge-base/materialcraftsmanship/4023.html","quote":"holds shape *better* over 50+ washes (per WRAP lab tests), and breathes 22% more than conventional blends."}]},"entry_sources":{"wash_and_wear_durability":["https://www.cnlingeriehub.com/knowledge-base/materialcraftsmanship/4023.html"]}}}},"handle":"romantic-lace-long-nightie-15517-225185","storefront_path":"/en/women-underwear/sleepwear-loungewear/nighties-onesies/romantic-lace-long-nightie--15517-225185","storefront_url":"https://ai.simons.ca/en/women-underwear/sleepwear-loungewear/nighties-onesies/romantic-lace-long-nightie--15517-225185"}}