A Mattress Protector Between Your Sheet And Mattress Protects From Stains And Dirt And Prolongs The Life Of Your Mattress. The Wadded Surface Adds An Extra Layer Of Softness And Comfort To Your Mattress. Your Mattress Stays Dry Because A Waterproof Layer Prevents Any Liquid From Passing Through. Durable And Discreet As The Waterproof Layer Is Between The Wadding And The Fabric. An Elastic Strap In Each Corner Keeps Your Mattress Protector In Place. The Mattress Protector Is Machine-Washable At 60°C, A Temperature That Kills Dust Mites.