A draw sheet is a square or rectangular absorbent sheet available in various absorption levels and various dimensions. The more common dimensions for draw sheets are 60 x 90 cm, 60 x 40 cm and 60 x 60 cm. Draw sheets help protecting surfaces (usually the bedding) from bladder leaks. There are 2 kinds of draw sheets : disposable and washable. Draw sheets with tuck-ins have wings that can be put under the mattress and help holding the draw sheet.