Nautica Kids Peyton 200-Thread-Count Cotton Pique Twin Sheet Set Twin-sized sheet set with flat sheet, fitted sheet, and 1 pillowcase 200-thread-count cotton pique; machine wash and dry Coordinates with Nautica Kids Peyton bedding collection Fitted sheet will fit mattresses up to 11-1/2 inches thick Flat is 66 by 81 inches; fitted is 54 by 76 inches; pillowcase is 20 by 30 inches