{"product_id":"serta-tranquility-eco-firm-crib-and-toddler-mattress-durable","title":"Serta Tranquility Eco Firm Crib and Toddler Mattress - Durable","description":"\u003cp\u003eOur review of the Serta Tranquility Eco Firm crib and toddler mattress finds it best suited for parents who want a long-lasting, safe sleep surface with a focus on firmness and simple maintenance. The single biggest reason to buy is its two-sided, innerspring core that delivers a stable, supportive surface for infants and a slightly softer, cotton-layered side for toddlers, all under a waterproof, easy-to-clean cover. The mattress is GREENGUARD Gold and CertiPUR-US certified, so safety-conscious families will appreciate the non-toxic construction and the lack of chemical fire retardants.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-sided design:\u003c\/strong\u003e One firm side offers appropriate infant support while the flip side adds a natural cotton layer for toddler comfort.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInnerspring core:\u003c\/strong\u003e 120 heavy-duty coils create a consistent, stable surface that resists sagging and supports growing children.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof cover:\u003c\/strong\u003e A vinyl outer layer provides a fully waterproof barrier that makes cleanup quick and simple after leaks or spills.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety certifications:\u003c\/strong\u003e GREENGUARD Gold and CertiPUR-US recognition reduce concerns about chemical emissions and harmful materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerimeter stability:\u003c\/strong\u003e A full border wire helps the mattress keep square corners and a snug fit inside standard cribs and toddler beds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in USA with warranty:\u003c\/strong\u003e Built domestically and backed by a long limited warranty for buyer peace of mind.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis mattress is aimed at parents and caregivers who prioritize a firm, supportive sleep surface and verified low chemical emissions in nursery bedding. The robust innerspring core suits infants who need a stable foundation and toddlers who benefit from the cotton-topped side for a gentler feel.\u003c\/p\u003e\n\u003cp\u003eIt is less ideal for families seeking an ultra-plush, foam-only mattress or those who want a completely cloth-covered, non-vinyl surface for tactile reasons. Also, if you prefer a mattress that arrives ready to use immediately in cold conditions, allow time for any compressed layers to regain shape.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDurable coil construction gives consistent firmness and long-term support for infants and toddlers.\u003c\/li\u003e\n\u003cli\u003eWaterproof vinyl cover makes cleaning simple after accidents or spills.\u003c\/li\u003e\n\u003cli\u003eCertifications and non-toxic construction reduce exposure to harmful chemicals and volatile emissions.\u003c\/li\u003e\n\u003cli\u003eFull perimeter border wire helps the mattress sit securely with square corners for a proper crib fit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome users may notice a crinkly sound from the vinyl cover or report dents over time from prolonged pressure.\u003c\/li\u003e\n\u003cli\u003eThe mattress may take 24 to 72 hours to fully expand or soften from compressed packaging, especially in cold rooms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e27.5 in W x 52 in L x \u0026lt;6 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003e120 heavy-duty innerspring coils with dual-sided layers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCover\u003c\/td\u003e\n\u003ctd\u003eWaterproof vinyl outer cover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eGREENGUARD Gold and CertiPUR-US certified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety\u003c\/td\u003e\n\u003ctd\u003eMeets flammability, lead, phthalate and CPSIA testing; no toxic fire retardants\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eLimited 35-year warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eMade in USA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Serta Tranquility Eco Firm crib and toddler mattress is a practical choice for parents who want a firm, safety-certified mattress that lasts from infancy through the toddler years. Its innerspring core, waterproof cover and recognized certifications deliver strong value for families who prioritize durability and low chemical emissions, though those seeking plush foam comfort or a non-vinyl feel should consider alternatives.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this mattress fit a standard crib?\u003c\/strong\u003e\u003cbr\u003eYes, it is designed to fit standard cribs and toddler beds at 27.5 in by 52 in with square corners for a secure fit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long before the mattress reaches full shape after delivery?\u003c\/strong\u003e\u003cbr\u003eAllow 24 to 72 hours for the mattress to regain full shape from compressed packaging; expansion can be slower in cold rooms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the cover easy to clean?\u003c\/strong\u003e\u003cbr\u003eYes, the vinyl cover is waterproof and wipes clean, which helps with frequent nursery accidents and spills.\u003c\/p\u003e","brand":"Delta Children","offers":[{"title":"Default Title","offer_id":48262948225243,"sku":"B00Q7FTMWE","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71WNw0JjkPL._AC_SL1500.jpg?v=1778302758","url":"https:\/\/gearmusthave.com\/products\/serta-tranquility-eco-firm-crib-and-toddler-mattress-durable","provider":"GearMustHave","version":"1.0","type":"link"}