Protects Against Dust Mites, Fluids, Urine, Perspiration, Allergens And Bacteria (10-Year Warranty) * Hypoallergenic Cotton Terry Surface With Membrane Back Coating (Waterproof, Noiseless and Breathable) * Great For Those With Kids, Pets, Allergies, Asthma, Eczema Or Incontinence * Will Not Change The Feel of Your Mattress (Registered With The FDA As A Class 1 Medical Device) * Fitted Sheet Style Design (Fits up to 18")