The Dream On Me Aden Convertible 4 in 1 Mini crib is a beautifully designed crib that gracefully matures gracefully with your child from infancy, through childhood to adulthood. With its robust good looks and solid frame, this crib features a stationary ( non-drop side) rail design which provides the utmost in product safety. For ease in reaching your baby, it sits low to the floor and features the convenience of a 3 position, adjustable mattress support system. Stylish and sturdy, this lovely piece of nursery furniture grows with your child transitioning easily into a toddler daybed, and twin size bed (twin size bed frame and twin mattress not included). Available in a variety of stylish finish, Coordinates with the Dream on Me Marcus Changing Table and Dresser. All tools for assembly included. Accommodates a Dream On Me portable crib mattress measuring 38"x24" sold separately