AGE RANGE: Recommended for kids of all ages FOR THE BATMAN FAN: This car bed is designed to resemble Batman’s Batmobile BUILT TOUGH: Made from durable, molded plastic MATTRESS SIZE: Accommodates a standard size twin mattress (not included); Mattress is designed to sit low in the bed for your child's safety and ease - optional box spring or bunky board sold separately DIMENSIONS: Assembled Dimensions: 47.5”W x 22.5”H x 94”D