SafeRest Premium Hypoallergenic Waterproof Crib Mattress Protector - Vinyl Free Vinyl 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 Will Not Change The Feel of Your Crib Mattress (Registered With The FDA As A Class 1 Medical Device)