Protect your mattress from excess moisture with Pure Rest Natural Wool Moisture Pad. This moisture pad is made from natural eco wool. Carded wool felted to 1/8" thickness, the organic wool pad is moisture resistant, dust mite resistant and naturally flame retardant. Soft and light, it is a natural alternative to plastic or vinyl mattress protectors. No polyurethane or other synthetic backing is used, just healthy, chemical free wool. This wool moisture pad is fitted like a sheet with wool on the top and sides and elastic around the bottom for fit. For best results this pad should be hand washed in cool water or machine washed on a gentle cycle, and line or flat dried.