"Premium fitted sheet style mattress protector featuring our Miracle Membrane® backing is absorbent and waterproof, keeping your mattress dry and free of stains, a dust-mite barrier and reduces exposure to allergens. Cotton terry surface is air vapor porous, and cool and comfortable to sleep on. Available in many sizes. Care: Machine wash hot, tumble dry medium. Do not bleach. Fits up to 22"""" inch mattress in queen and king size"