Berries Waterproof Crib SheetCrib Toddler Bed Sheet Featuring a fully elasticized, flexible fit design our sheets are designed to protect standard sized crib and toddler bed mattresses. Actual Dimensions: 52 x 28 x 9 Since our waterproof sheets double as a mattress protector, they make for an easy clean up after the occasional accident. Simply pull the crib sheet right off the mattress and throw it in the washing machine. Our sheets are machine washable and should be tumble dried