Long lasting durability and firmness with a cool gel memory foam topper. The Sealy Cozy Cool Hybrid 2-Stage Coil & Gel crib mattress combines the best of both worlds–a long lasting innerspring coil system plus a cozy soybean cool gel memory foam topper. Features CoolTex two-tone cover is soft and luxurious, helping to enhance the cool feel of the gel underneath and keep baby comfortable This hybrid design combines both nature and technology with a sturdy innerspring coil system plus soybean cool gel memory foam Infant side is firmer with hypoallergenic cushioning and an anti-sag weight distribution system Toddler side is softer with a soybean cool gel memory foam layer that helps create a cozy cool environment Soybeans are a renewable resource and help create a comfortable foam with a natural touch Core offers durable 204 coils plus a high 6 gauge perimeter border wire for the best firmness all around EverEdge corner and side protectors add support to key areas PVC-free cover is both liquid and stain-resistant for a more sanitary sleeping surface Lock-stitched binding will not unravel and won’t trap liquids and odors Airflow pocket helps keep mattress fresh Square corner design for a snug fit in cribs CertiPUR-US Certified gel foam GREENGUARD Gold Certified: This entire mattress is GREENGUARD Gold Certified for indoor air quality and low chemical emissions to help create a healthier sleeping environment for your baby Voted Americas Best for Baby, Sealy crib mattresses and pads won the Womens Choice Award in 2013, 2014 & 2015 for most recommended baby products. Lifetime warranty on workmanship and materials Proudly made in the USA of U.S. and imported parts Specifications Measures 52 L x 27.88 W and fits in both USA standard size crib and toddler beds.