The Circo Blast Off bedding set has a fitted sheet, flat sheet, comforter, pillow case and pillow sham. The blue comforter is a blend of polyester and cotton. It sports cute prints of space shuttles and spaceships. The other pieces in this 5-piece bedding set have small stars on dark blue backgrounds. These decorative designs glow when the lights are turned off. This glow-in-the-dark bedding set fits a twin-sized bed.