The 40 Winks Pebble-Puff Cotton mattress pads by Weft-Tex are designed for maximum comfort and a rejuvenating night' s rest. Recommended by doctors and allergists, this mattress pad cover provides a protective barrier against dust mites and other allergens. Constructed with our trademark multi layer fabric process and finished with a urethane laminate bottom protection and surface waterproof treatment, this mattress pad provides maximum protection against accidental spills and leaks.