Instyle Furnishing Premium 100% Waterproof Mattress Encasement Protector, Hypoallergenic, Knitted Encasement Protects Against Dust Mites, Allergens, Bacteria, Mold, Mildew, and Fluids, Available in Twin, Twin Xl, Full, Queen, and King, 10 Year Warranty. 100% Waterproof - repels all liquids including bodily fluids, perspiration, urine and accidental spills Hypoallergenic 100% knitted surface and polyurethane backing inhibits allergy-causing dust mites and bacteria from living in your mattress Great For Those With Kids, Pets, Allergies, Asthma, Eczema Or Incontinence Machine Washable Fits mattresses 8"-24" in height and completely encases the mattress for added protection.