* Waterproof Organic Cotton Cover Features a luxurious organic cotton fabric with a clear 100% polyethylene food-grade waterproof coating. Non-allergenic and easy-to-clean. * Organic Cotton Filling Pure, Natural, and chemical-free * Firm Support Features Air-Core™, a non-toxic environmentally friendly support layer made from 100% food-grade polyethylene. Air-Core is a network of closed cell air pockets that provide a firm and comfortable base without the toxic properties of polyurethane foam and the allergenic concerns of latex rubber. * Fire Protection Exclusive fire protection system features a non-toxic and naturally derived fire barrier system that is safe and effective. It meets and exceeds all Federal and State flammability standards without the use of potentially harmful chemicals.