THIS SET INCLUDES: 1 MATTRESS, 2 WATERPROOF PADS, 1 3PK ORGANIC SHEET SET. 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 mom. At its core, this mattress is built with Naturepedic's exclusive patent pending wave support technology, made from pure food-grade polyethylene. Naturepedic is a GOTS certified organic mattress manufacturer and has earned the trust of moms 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.