DOES NOT FIT TWIN BEDS; Made to fit toddler bed / crib mattress size 28 x 52 inches. Get ready for your little one to become a superhero in training with this 4-Piece Toddler Bedding set. Includes a 57" X 42" Comforter featuring Superman on a vy ground with star bursts on the trim. Includes a 28" X 52" Fitted sheet in solid blue and a solid blue top sheet measuring 45" X 60". The 20" X 30" Reversible pillowcase features Superman, the last son of krypton, and his icon on the back. The perfect bedding set for your little Superman fan!