Twin Size Contains: One twin extra-long flat bed sheet, finished size 66 x 96 inches (168 x 244 cm). One twin extra-long fitted sheet, 39 x 80 inches (99 x 203 cm). Both of the above fit a standard twin mattress or a twin extra-long mattress. One standard pillowcase, finished size 20 x 30 inches (51 x 76 cm) to fit a 20 x 26 inch pillow. Full Size Contains: One full flat bed sheet, finished size 81 x 96 inches (206 x 244 cm). One full fitted sheet. Both of the above sheets fit a standard full mattress of 54 x 75 inches. Two standard pillowcases, each with finished size of 20 x 30 inches to fit 20 x 26 inch pillows.