Coordinating comforter not included. ... One Teenage Mutant Ninja Turtles Time to Shell Up twin sheet set. Included are one Twin/Single size flat sheet, fitted sheet, and one standard pillowcase. The flat sheet is green with a repeating pattern of the Ninja Turtles and sayings like "Mutants Rule!" on it. The fitted sheet is dark blue and features the same pattern as the flat sheet. ... CONTENTS: 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 20 x 26 inches (51 x 66 cm) pillow.