The Naturepedic Organic Cotton Mini Crib/Portable Crib Mattress features organic cotton fabric and filling combined with a wipe clean waterproof surface so pure it meets food contact standards. Naturepedic is a GOTS certified organic mattress manufacturer and has earned the trust of parents and doctors across the country. Certified by GREENGUARD to meet their strict standards for eliminating chemical emissions, the Naturepedic Organic Cotton Portable Crib Mattress makes an excellent choice for parents seeking to remove potentially harmful chemicals from their baby’s nursery. Wipe clean waterproof surface so pure it meets food contact standards Patented food-grade 100% polyethylene waterproof surface is made without harmful chemicals and keeps fluids out. Provides the ultimate stain resistant waterproof surface and a safer alternative to vinyl/PVC. Certified organic cotton fabric & filling Organic Cotton is an ideal material that is both natural and renewable. It is a healthier alternative to chemically treated foams and allergy-prone latex. Air-Core technology for structural support Made from 100% food-grade polyethylene, Air-Core is a network of closed cell air pockets that provide a firm and comfortable base without polyurethane foam or the allergenic concerns of latex. Allergy-friendly design free from harmful chemicals No vinyl/PVC, phthalates, antimony, brominated or chlorinated fire retardants, Polyacrylonitrile (PAN), boric acid, polyurethane foam (including soybean foam), PFCs or antibacterial/biocide treatments. Measures 24? x 38? x 2? Made in the U.S.A. This product is covered by U.S. Patent No. 9,259,096. Other patents pending.