The No-Compromise?Organic Cotton Classic offers everything you might need in a crib mattress. Weighing about 22 lbs, it's heavy duty innerspring is built to last. It is waterproof, firm and will provide your child with a more natural, healthy and comfortable sleep environment. It has a Luxurious organic cotton fabric with easy-to-clean 100% polyethylene waterproof surface (so pure it meets food contact standards). Provides the ultimate non-toxic and stain resistant waterproof mattress cover. Also functions as a dust mite/bed bug barrier - no need for an additional dust mite encasing. Clean white finish. The Organic cotton is the purest form of cotton and a healthier alternative to synthetic fabrics and foams. Naturepedic uses only U.S. grown and certified organic cotton as filling for its mattresses and buys directly from USDA certified sources. This ensures purity, organic reliability and support for U.S. farmers.