The Up and Under Linen &  Mattress Protector, manufacturer by Protect A Bed is a unique and innovative bed protection solution for all ages. It consists of a soft, terry towelling drawsheet style surface with tuck-ins which fits over the mattress and flat sheet. A detachable waterproof, silky soft top sheet which is used to cover the sleeping person creates a barrier from above, protecting the top sheet and covers from getting wet. Adjustable size press studs allow for comfort and added security ensuring the top sheet stays firmly in place. Both surfaces are soft, comfortable, quiet and waterproof.