Waterproof Bedwetting Sheet I heard that these are also used in hotels and nursing homes, so I bought them to deal with my child's bedwetting and night sweats. I have them stored as spares, unopened and unused. The third photo is an image of the sheet I'm currently using. For reference of the fabric. For bedwetting, I used to put it on top of the futon, but now, on the advice of a friend who works at a hotel, I use it between the mattress and the futon as a moisture barrier. 100% Polyester Size: 100x205 cm