{"product_id":"mini-crib-mattress-4-in-firm-waterproof-mini-crib-mattress","title":"Mini Crib Mattress 4 in - Firm Waterproof Mini Crib Mattress","description":"\u003cp\u003eIn this review we look at the 4 in mini crib mattress designed for most mini and portable cribs. The bottom line: this mattress is for parents who want a firm, easy-to-clean sleep surface with safety certifications and sustainable construction; the single biggest reason to buy is its firm, sustainably sourced fiber core combined with a waterproof, hypoallergenic cover that makes daytime cleaning and long term use straightforward. The mattress measures 38L x 24W x 4H so it suits scaled-down cribs where a snug, supportive surface is needed rather than plush sink-in comfort.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact fit:\u003c\/strong\u003e Measures 38L x 24W x 4H and is built to fit most mini and portable cribs when you measure first for a proper, safe fit.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFirm support:\u003c\/strong\u003e The premium sustainably sourced fiber core gives a firm sleeping surface intended to support infant safety and healthy spinal alignment.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSustainable materials:\u003c\/strong\u003e The fiber core is made from upcycled plastic bottles, so the mattress uses recycled content without adding harmful chemicals.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eWaterproof cover:\u003c\/strong\u003e A durable vinyl cover wipes clean quickly and is hypoallergenic, which helps with common crib messes and allergen control.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSafety certified:\u003c\/strong\u003e GREENGUARD Gold certification and compliance with flammability, lead, phthalate and CPSIA testing reduce concerns about chemical emissions and toxic fire retardants.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMade in USA and warranty:\u003c\/strong\u003e Manufactured in the United States and backed by a trusted 10 year warranty for long term reassurance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe mattress is best for parents with mini or portable cribs who prioritize a firm, safe sleeping surface and easy cleanup. It fits families who want a sustainably produced option with low chemical emissions and value a waterproof, hypoallergenic cover for everyday use.\u003c\/p\u003e\n\u003cp\u003eIt is less suited for caregivers seeking a plush or memory foam feel, or for use in standard full-size cribs and most pack 'n plays; measure the crib first to avoid gaps and ensure infant safety, and consider a different model if a softer sleep surface is preferred.\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\u003eFirm, supportive feel that aligns with safe infant sleep recommendations and gives stable support.\u003c\/li\u003e\n \u003cli\u003eWaterproof, hypoallergenic cover cleans easily and helps reduce exposure to spills and allergens.\u003c\/li\u003e\n \u003cli\u003eGREENGUARD Gold certification and non-toxic construction lower concerns about chemical emissions.\u003c\/li\u003e\n \u003cli\u003eSustainably sourced fiber core from upcycled plastic bottles and a 10 year warranty add value.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eFirmness receives mixed feedback; some may find it uncomfortably firm compared with softer alternatives.\u003c\/li\u003e\n \u003cli\u003eExpansion time after delivery can vary in cold rooms, so allow 24 to 72 hours for full shape restoration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e38L x 24W x 4H\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eCore\u003c\/td\u003e\n\u003ctd\u003ePremium sustainably sourced firm fiber core\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eCover\u003c\/td\u003e\n\u003ctd\u003eWaterproof hypoallergenic vinyl cover\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eGREENGUARD Gold; meets flammability, lead, phthalate and CPSIA testing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMade\u003c\/td\u003e\n\u003ctd\u003eMade in USA\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e10 year warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eFor parents who need a compact, firm mini crib mattress with easy maintenance and verified low chemical emissions, this model is a strong value; its sustainably sourced fiber core and waterproof hypoallergenic cover make it practical for everyday nursery use, though shoppers who want a softer, memory foam feel should look at different options.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this fit my mini crib?\u003c\/strong\u003e\u003cbr\u003eMeasure your mini or portable crib interior first; the mattress is 38L x 24W x 4H and fits most mini and portable cribs but is not designed for standard cribs or pack 'n plays.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long before the mattress reaches full size after delivery?\u003c\/strong\u003e\u003cbr\u003eAllow 24 to 72 hours for the compressed mattress to regain full shape; expansion is faster in warmer rooms and slower in cold conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the cover safe for babies with allergies?\u003c\/strong\u003e\u003cbr\u003eThe durable vinyl cover is waterproof and hypoallergenic, and the product carries GREENGUARD Gold certification and testing that reduce chemical emission concerns.\u003c\/p\u003e","brand":"Delta Children","offers":[{"title":"Default Title","offer_id":48241130995931,"sku":"B07Z8QWF1M","price":62.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81d87RuofdL._SL1500.jpg?v=1770992161","url":"https:\/\/gearmusthave.com\/products\/mini-crib-mattress-4-in-firm-waterproof-mini-crib-mattress","provider":"GearMustHave","version":"1.0","type":"link"}