Product Description The Sealy OmniPedic Breathable 2-Stage Crib Mattress and Toddler Mattress is a baby mattress designed for years of use with a firmer infant side and slightly softer toddler side. The breathable plush knit cover is ultra-comfortable for babies, and offers an airy breathability on baby's skin. The cover zips off and can be machine washed for lasting freshness. A pvc-free waterproof barrier protects baby's crib mattress for leaks and odors. There is no polyurethane foam, no latex foam, and no hard plastic noodle weave polyethylene foam. Instead, a light and airy fiber is spun together made with a sustainably responsible design that creates a hypoallergenic Earth-friendlier core. The infant side feels slightly firmer and the toddler side is slightly softer. Both sides have been firmness tested with crib mattress firmness gauges to ensure safety. The crib mattress is GREENGUARD GOLD Certified for Air Quality and passes CPSIA and ASTM crib mattress safety tests. No lead or phthalates or levels of harsh VOCs that emit into the air around your sleeping baby. Perfect fit inside all USA standard full-size cribs and toddler beds. Measures 52 inches long by 28 inches wide and is 6 inches thick. Square corners for a snug fit. Weighs less than 8 pounds to easily lift and change crib sheets. Tested to high quality standards, passes CRF 1632/1633 testing and does not use chemical flame retardants. American-made core is designed and built for safety, quality and lasting durability. Lifetime warranty on workmanship and materials. More babies sleep on a Sealy Baby crib mattress than any other brand in the USA, featuring decades of trusted baby crib mattresses. From the Manufacturer Sealy Baby offers the most trusted crib mattresses and offers safe, supportive, and comfortable toddler bed mattresses, bedside baby bassinets and protective premium crib bedding that parents have depended on for decades. As the leader in safe sleep, comfort, and lasting quality for years, more babies sleep on a Sealy than any other brand in the USA. Sealy Baby crib mattresses are firmness tested to help reduce the risk of suffocation and provide a supportive sleeping surface. In addition, 100% of Sealy Baby crib mattresses are American made by experts who help create industry standards to ensure safety and quality for infants and toddlers. Every baby mattress is Non-Toxic, ASTM Certified, CPSIA Certified and Greenguard Gold Air Quality Certified for a healthier sleeping environment, tested for low chemical emissions, and are made without harsh chemicals for a safer sleep. Sealy Baby's collection of breathable bassinets, bedside sleepers, comfortable diaper changing pads and top-rated, hypoallergenic protective crib mattress pads and encasements are nursery essentials and baby registry must haves that every new parent desires for their newborn. Parents rest easier with a trusted brand, quality products and customer care that is always here to help your family sleep better.