Plenty of room for sleep, study and play? Now that s a win-win! The Max and Lily Twin Over Twin L-Shape Bunk Bed with Bookcase is the perfect combination of functional and fun. Top bunk features tall 14"" guardrails for extra sleep security up high. For best fit and safety, we recommend using a 5-inch mattress, and not exceeding an 8-inch mattress. Lower bed is not attached to the top bed and can be moved independently. Practical storage shelves give you the space to organize all your toys, books and school essentials. Angled ladder with wide anti-slip steps offers comfortable, easy climbing. Added bonus - ladder and shelves are both reversible upon assembly, so they fit great in any space. All Max and Lily products use a durable finish. The slatted head and footboards and flush, color-matched hardware give this bunk bed a clean, modern look. Instructions, upper/lower slat rolls, and required hardware are included.