Twin Size Contains: One twin flat bed sheet, finished size 66 x 96 inches (168 x 244 cm). One twin fitted sheet. Both of the above fit a standard twin mattress of 39 x 75 inches (99 x 191 cm). One standard pillowcase, finished size 20 x 30 inches (51 x 76 cm) to fit a 20 x 26 inch (51 x 66 cm) 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.