# Pure Core 2\-Stage Crib Mattress \+ Hybrid Quilted Waterproof Cover \| live price, prepared checkout ## Built for shopping agents: what RoboTrunk does for every product We asked shopping agents, including Meta's Muse first-hand, what they need from a store. This is what they asked for, and what we have built. RoboTrunk is working through its catalogue, so a step may not be done for this one yet. 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Sold and shipped by modernnursery\.com, modernnursery.com; payment happens on the store's own checkout. Brand: Babyletto ## Variants - White: USD 249.00; in stock. Variant id: `gid://shopify/ProductVariant/32514107015268` - Seller: modernnursery\.com. Price: USD 249\.00. Stock: in stock. Variant: White, variant id `gid://shopify/ProductVariant/32514107015268`. shipping not recorded; confirmed at merchant checkout. returns not recorded; confirmed at merchant checkout. [Public evidence](https://modern-nursery-test-store.myshopify.com/products/babyletto-pure-core-non-toxic-crib-mattress-with-hybrid-cover). [Comparison page](/compare/want/crib-mattresses-tested-for-chemical-emissions). [Get ready to buy from modernnursery\.com: prepare checkout](/checkout-prepare?merchant=modernnursery-com&product_id=gid%3A%2F%2Fshopify%2FProduct%2F4799086198884&variant_id=gid%3A%2F%2Fshopify%2FProductVariant%2F32514107015268). ## Checked facts Each fact below was checked against the source it cites before it was published. Each carries that source's link and the time RoboTrunk read it. 50 checked facts, checked 2026-10-21T10:16:10.318Z. Research depth: trimmed read. Deep read: the store's own data and 7 outside pages \(the store's own product page; maker page; blog; regulator recall search \(CPSC \(United States\)\); regulator recall search \(Health Canada\)\), each read in full by RoboTrunk and trimmed to its main content, then written up and checked\. Facts from the maker or a manual quote the page word for word; what real users report is summarised with a link to the page read\. Recall status was checked directly with CPSC \(United States\), Health Canada: CPSC recall search for Babyletto / M5321C returned no recall records\. Health Canada returned one Babyletto record for Kiwi Electronic Recliner and Swivel Gliders with USB Port, a different product, so no recall applies to this mattress\. - Store SKU: The store lists the SKU as BYL\-M5321C\.. Source: (listing), read 2026-10-20T19:23:27.988Z. - Cover materials: The store lists the cover face as 100% organic cotton, filling as polyester and backing as food\-grade polyethylene\.. Source: (guide), read 2026-10-21T10:10:49.798Z. - Dimensions: The mattress measures 52 inches long, 27\.75 inches wide and 5 inches high\.. Source: (guide), read 2026-10-21T10:10:54.547Z. - Firmness: The infant side is firm enough that hand pressure does not sink deeply, while the toddler side is softer\.. Source: (blog, Baby's Little Place, updated 2026-03-27), read 2026-10-21T10:11:03.038Z. - Unpacking: It arrived rolled and compressed and expanded to its full 5\-inch thickness quickly after unpacking\.. Source: (blog, Happy TechFam, published 2025-10-30), read 2026-10-21T10:11:06.840Z. - Store variant: The listed variant is White\.. Source: (listing), read 2026-10-20T19:23:27.988Z. - Store certifications: The store's structured product data lists Eco\-Friendly, GREENGUARD, GREENGUARD Gold, BPA Free, No Added Formaldehyde, No Known Harmful Phthalates, No PFAS, Low VOC, Fire Retardant Free and Recycled Materials\.. Source: (guide), read 2026-10-21T10:10:49.798Z. - Weight: The assembled mattress weighs 11 pounds\.. Source: (guide), read 2026-10-21T10:10:54.547Z. - Crib fit: It fit Babyletto Hudson and Maki cribs plus Delta Children Essex and Graco Benton full\-size cribs with no gap problems\.. Source: (blog, Baby's Little Place, updated 2026-03-27), read 2026-10-21T10:11:03.038Z. - Off\-gassing: There was no chemical or plastic smell, so no airing\-out period was needed\.. Source: (blog, Happy TechFam, published 2025-10-30), read 2026-10-21T10:11:06.840Z. - Cover design: The hybrid cover combines two covers into one\.. Source: (listing), read 2026-10-20T19:23:27.988Z. - Model: The maker lists the model as M5321C\.. Source: (guide), read 2026-10-21T10:10:54.547Z. - Corners: The square corners help prevent corner gaps and hold crib sheets in place\.. Source: (blog, Baby's Little Place, updated 2026-03-27), read 2026-10-21T10:11:03.038Z. - Weight: It is light enough to lift with one hand when changing sheets\.. Source: (blog, Happy TechFam, published 2025-10-30), read 2026-10-21T10:11:06.840Z. - Country of origin: The mattress is made in the USA\.. Source: (guide), read 2026-10-21T10:10:54.547Z. - Cover feel: The hybrid cover has a quilted cotton face and was rated the coziest of the cover options\.. Source: (blog, Baby's Little Place, updated 2026-03-27), read 2026-10-21T10:11:03.038Z. - Cover feel: The quilted waterproof cover felt soft and premium rather than crinkly or plastic\-like\.. Source: (blog, Happy TechFam, published 2025-10-30), read 2026-10-21T10:11:06.840Z. - Included cover: A waterproof mattress cover is included\.. Source: (guide), read 2026-10-21T10:10:54.547Z. - Breathability: The polyester fiber core and vinyl\-free cover are described as allowing airflow and helping the baby stay cool\.. Source: (blog, Baby's Little Place, updated 2026-03-27), read 2026-10-21T10:11:03.038Z. - Crib fit: It fit a Babyletto Lolly crib tightly with no gaps along the edges\.. Source: (blog, Happy TechFam, published 2025-10-30), read 2026-10-21T10:11:06.840Z. - Two\-stage use: The mattress is dual\-sided: a firm side for infants and a softer side for toddlers\.. Source: (guide), read 2026-10-21T10:10:54.547Z. - Cleaning: Small messes can be wiped with a damp cloth, and the cover can be machine washed on a gentle cycle to avoid shrinking or damaging the waterproof barrier\.. Source: (blog, Baby's Little Place, updated 2026-03-27), read 2026-10-21T10:11:03.038Z. - Firmness: The infant side is exceptionally firm with little give; the toddler side is noticeably softer and more cushioned\.. Source: (blog, Happy TechFam, published 2025-10-30), read 2026-10-21T10:11:06.840Z. - Crib fit: The mattress is made to fit standard full\-size cribs\.. Source: (guide), read 2026-10-21T10:10:54.547Z. - Smell: No initial chemical smell was noted\.. Source: (blog, Baby's Little Place, updated 2026-03-27), read 2026-10-21T10:11:03.038Z. - Waterproofing: Spit\-up and diaper leaks beaded on the cover and did not seep through to the core\.. Source: (blog, Happy TechFam, published 2025-10-30), read 2026-10-21T10:11:06.840Z. - Crib size: The mattress is designed to fit a standard crib\.. Source: (guide), read 2026-10-21T10:10:54.547Z. - Weight: Its low weight makes lifting and sheet changes easier\.. Source: (blog, Baby's Little Place, updated 2026-03-27), read 2026-10-21T10:11:03.038Z. - Cover durability: Some users report cover durability problems such as broken zippers, undone seams and unraveling quilting after washing\.. Source: (blog, Happy TechFam, published 2025-10-30), read 2026-10-21T10:11:06.840Z. - Cover construction: The hybrid cover has a soft quilted cotton face and a PVC\-free waterproof backing made with food\-grade polyethylene\.. Source: (guide), read 2026-10-21T10:10:54.547Z. - Value through stages: The dual\-sided design is seen as good value because it covers infant and toddler stages\.. Source: (blog, Baby's Little Place, updated 2026-03-27), read 2026-10-21T10:11:03.038Z. - Customer service: Customer service was reported as responsive and sent a replacement when a cover failed\.. Source: (blog, Happy TechFam, published 2025-10-30), read 2026-10-21T10:11:06.840Z. - Cover fit: The cover has a zipper closure and square corners so a crib sheet can fit smoothly\.. Source: (guide), read 2026-10-21T10:10:54.547Z. - Cover options: The hybrid cover is waterproof and quilted; the Smart cover is water resistant but not waterproof, and the Dry cover is waterproof but not quilted\.. Source: (blog, Baby's Little Place, updated 2026-03-27), read 2026-10-21T10:11:03.038Z. - Mold risk: Moisture can be trapped between an added mattress protector and the built\-in cover, so all layers should be dried fully to avoid mold\.. Source: (blog, Happy TechFam, published 2025-10-30), read 2026-10-21T10:11:06.840Z. - Removable cover: The waterproof cover is removable\.. Source: (guide), read 2026-10-21T10:10:54.547Z. - Longevity: The mattress is expected to last through the crib and toddler\-bed years, roughly three to four years\.. Source: (blog, Happy TechFam, published 2025-10-30), read 2026-10-21T10:11:06.840Z. - Mattress outer material: The mattress outer layer is cotton and polyester\.. Source: (guide), read 2026-10-21T10:10:54.547Z. - Cover zipper: The cover zipper ran smoothly and made the cover easy to remove\.. Source: (blog, Happy TechFam, published 2025-10-30), read 2026-10-21T10:11:06.840Z. - Mattress batting: The batting is 80% modacrylic and 20% polyester fiber\.. Source: (guide), read 2026-10-21T10:10:54.547Z. - Mattress core: The inner core is polyester\.. Source: (guide), read 2026-10-21T10:10:54.547Z. - GREENGUARD Gold: The mattress is GREENGUARD Gold Certified after testing for more than 10,000 chemical emissions and VOCs\.. Source: (guide), read 2026-10-21T10:10:54.547Z. - Hypoallergenic: The maker describes the mattress as hypoallergenic\.. Source: (guide), read 2026-10-21T10:10:54.547Z. - Flammability: The mattress passes all government flammability requirements\.. Source: (guide), read 2026-10-21T10:10:54.547Z. - Excluded materials: The maker says the mattress is free of chemical flame retardants, allergens, polyurethane, soy foam, vinyl \(PVC\), PFCs, synthetic latex and dyes\.. Source: (guide), read 2026-10-21T10:10:54.547Z. - Recyclable core: The polyester core is described as 100% recyclable\.. Source: (guide), read 2026-10-21T10:10:54.547Z. - Material claims: The maker says the product is latex, lead, phthalate and PVC free\.. Source: (guide), read 2026-10-21T10:10:54.547Z. - Warranty: The mattress has a 10\-year warranty and the cover has a 1\-year warranty\.. Source: (guide), read 2026-10-21T10:10:54.547Z. - Replacement cover: A replacement Hybrid Cover for the full\-size crib mattress is available separately\.. Source: (guide), read 2026-10-21T10:10:54.547Z. - Non\-toxic claim: The maker calls it a non\-toxic crib mattress\.. Source: (guide), read 2026-10-21T10:10:54.547Z. The full evidence pack, with every citation, source and gap: [evidence pack](/agent/evidence/modernnursery-com--babyletto-pure-core-non-toxic-crib-mattress-with-hybrid-cover) ## Questions we researched but could not confirm Every fact above is cited. To find them we read the store listing, the maker's page, blogs and the recall records of CPSC \(United States\) and Health Canada and searched for the manual, regulator recall notices, owner reviews, owner forums and video reviews. We also chased the questions below across those sources and found no reliable answer, so you know exactly where the evidence ends and never have to guess. - What age, weight or height limits apply to the infant and toddler sides? - Does the mattress meet ASTM or JPMA crib mattress safety standards? - Does the mattress contain fiberglass? - Does the cover shrink or lose waterproofing after repeated washing? - How thick is the quilted padding on the cover? - Does the mattress have handles for lifting? - Are replacement covers available in colors other than white? - Does the mattress require any assembly or tools? - Does Babyletto warn against using an extra mattress protector? - What water temperature should the cover be washed in? - What does the cover warranty exclude? To buy this through RoboTrunk, pass merchant `modernnursery-com`, product_id `gid://shopify/Product/4799086198884` and one variant_id from the list above. Product image of Pure Core 2\-Stage Crib Mattress \+ Hybrid Quilted Waterproof Cover, supplied by modernnursery\.com: This product on modernnursery.com: Retrieved 2026-10-25T19:46:23.155Z from This page is published by RoboTrunk, a store built for shopping agents. The store named on this page sells the product and ships it. RoboTrunk is not the seller and never holds the money. Buying works in one path. RoboTrunk's tools prepare a checkout at that store, then hand back a short-lived link. The person approves the total; once RoboTrunk has checked the store's total against it, the person is given the checkout link to tap in their own browser, or, if the person prefers and gives permission, their agent may open the link and finish there, and payment always happens on the store's own checkout page. RoboTrunk never takes the payment or sees a card. 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