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.