Baby U™ Waterproof Sheet Protector keeps sheets dry through toilet training. No more middle of the night bed stripping. Tuck in flaps hold the Waterproof Sheet Protector in place on top of the bottom sheet while your child sleeps. When the bed is wet there’s no need to remove the sheets, just the Baby U™ Waterproof Sheet Protector. Washable and bleachable. Soft, quilted top layer. Absorbent middle layer (500ml). 100% waterproof vinyl barrier