The Sealy OmniPedic Breathable 2-Stage Crib Mattress and Toddler Mattress is an ultra-lightweight infant to toddler baby crib mattress with a breathable and washable zip cover. Sealy baby mattresses for cribs are designed for years of use and the OmniPedic offers a dual-firmness design with a firmer infant side and slightly softer toddler side. The breathable plush knit cover is ultra-comfortable for babies and offers airy breathability on baby s skin. The crib mattress cover zips off and is machine washable for lasting freshness. A pvc-free waterproof barrier protects baby s crib mattress for leaks and odors. Waterproof crib mattresses help prevent mold and mildew growth inside baby s mattress. There is no polyurethane foam no latex foam no hard plastic noodle weave polyethylene foam no fire retardants. Instead a light and airy fiber is spun together made with a sustainably responsible design that creates a hypoallergenic Earth-friendlier core. Sealy crib mattresses pass ASTM crib mattress safety tests for firmness to help reduce the risk of suffocation. Converts to a toddler bed mattress with a cozier side. All Sealy baby crib mattresses feature GREENGUARD GOLD Air Quality Certified materials are CPSIA Certified and certified to pass ASTM Crib Mattress standards for a safe crib mattress from a brand you can trust. No lead or phthalates or levels of harsh VOCs that emit into the air around your sleeping baby. No odor or noisy materials. Baby s mattress fits snugly inside all standard full-size baby cribs and toddler beds. Full size baby mattress 52x28x6 inches. Square corners securely fit inside cribs and toddler beds. Ultra-lightweight baby mattress 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. is designed and built for safety quality and lasting durability. Sealy was voted the #1 most trusted mattress brand and features the safety support and comfort from a world-reknowned brand. We offer a limited lifetime warranty on workmanship and materials. More babies sleep on a Sealy than any other brand.