The Naturepedic Organic Cotton Classic 150 Seamless will provide your child with a more natural, healthy and comfortable sleep environment. With seamless waterproof edges, 150 coils, edge support, organic cotton throughout, and a firm easy-to-clean non-toxic waterproof surface, the Organic Cotton Classic 150 is an excellent choice for parents seeking to eliminate potentially harmful chemicals and allergens. 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.