- Multi-functional as it can be converted from a crib to a toddler daybed or a full-size bed. (Guard rail included) - Four-level mattress height adjustment. - Metal spring mattress support. - Sleigh side panel. - Non-toxic easy-care finish. The Allie 3-in-1 Crib is made of Solid wood with a smooth, glossy finish. The crib can be converted into a toddler day bed and full size bed. It comes equipped with a guard rail, a 4 level mattress support, and a flat side panel. Its simple, convertible ability allows you to adjust the product throughout your child"s growth.