LinenSoft Mattress Protector -QUEEN- 100% Waterproof & Dust Mite Protection-Fits Mattresses up to 18" Cotton 100% Waterproof - repels all liquids including urine and sweat Dust mite barrier eliminates dust mites and bacteria Fits mattresses up to 22" deep with elastic all around the fitted sheet Great for asthma, eczema and allergy sufferers. Fitted sheet style. Machine washable gentle cycle, tumble dry no heat.