Waterproof layer protects your sheets and mattress from fluids and accidents – no more middle of the night bedding changes. Cotton blend fabric quilted with a highly absorbent layer of soft fill offers breathable comfort that is quiet and dry. Non-slip backing prevent shifting to protect sheets and mattress. Reusable pad is machine washable and dryer safe. This 34″ x 52″ underpad is designed to be placed directly under the sleeper on any mattress size.