The Disney / Pixar Cars Toddler-to-Twin Bed with Toy Box from Delta Children is designed to resemble your little one s favorite character Lightning McQueen! Offering authentic race car style with a steering wheel spoiler and built-in storage space under the hood it makes playtime and bedtime much more fun. Easily convertible it goes from a toddler bed to a twin bed by switching out a crib mattress for a twin mattress. And once it s converted to a twin bed the built-in storage becomes an oversized toy box providing plenty of space for toys blankets or books.