Provide a snug and secure fit for baby's comfort. 100% cotton jersey compact size fitted sheet is extra soft and has full elastic edges for a perfect fit. Jersey crib sheets offer a warm, tee shirt like feel for extra comfort. Machine washable and dryable. Sheets measure 38"L x 24ï¿½W x 3ï¿½H and fit 3ï¿½ mattresses. Includes 4 crib sheets.