Martex Studio Cotton Twin Sheet Set - Zebra Black/White 3-piece Twin Sheet Set: one Twin fitted sheet for 39" x 76" mattress up to 15" deep, one Twin flat sheet, finished size 66" x 96", one standard pillowcase, finished size 20" x 32". Fabric content: 60% cotton, 40% polyester, 200 thread count. Care instructions: Machine washable.