Explore the solar system with these illustrative sheets featuring the sun, all eight planets, rocket ships and a few funny extraterrestrials. The planets are surrounded by educational, fun facts so kids can cuddle up and learn about the universe at the same time. Pure organic cotton percale. 200-thread count. Oeko-Tex certified. Set includes flat sheet, fitted sheet and two pillowcases (one with twin). Extra pillowcases are available individually. Machine wash. Imported.