The ClevaMama Toilet Training Sleep Mat consists of two soft layers of brushed cotton, on both sides of a discreet layer of waterproof polyurethane. When placed on top of the child's bedding, it can easily be removed for washing, while leaving the rest of the bed intact. The Toilet Training Sleep mat combines comfort and discretion and helps to reduce the stress for both the child and parent. Super convenient, it can be both machine washed and tumble dried. , , Bed wetting is a common occurrence that can affect up to 14% of children into their early teens.