The Naturepedic Organic Cotton Lightweight Classic 2-Stage matches the strength and durability of an innerspring without the added weight in a 2-Stage dual firmness design. Layers of luxurious organic cotton batting create the perfect balance of firmness and comfort. Get the best of both worlds; firm and comfortable for baby and toddler with long lasting durability and easy crib changing for parents! At its core, this mattress is built with Naturepedic's exclusive patent pending wavesupport™ technology, made from pure food-grade polyethylene. Naturepedic is a GOTS certified organic mattress manufacturer and has earned the trust of parents and doctors across the country. Naturepedic also meets the strictest GREENGUARD® certification standards for eliminating chemical emissions. Winner of numerous awards and prestigious endorsements, Naturepedic organic crib mattresses are simply the healthiest available.