This functional and stylish bunk bed is designed with safety in mind. With full-length guardrails on the top bed and a sturdy frame, parents can rest easy knowing their children are sleeping soundly. The attached stairway provides easy and safe access to the top bunk, while the under-bed drawers and storage shelves make it easy to stay organized. The down bed can be converted from a twin to a full size, adding versatility to this already impressive space-saver. Features: Space-saving design with drawers, staircase, and under-bed drawers Convenient wheels on drawers for easy access Full-length guardrails and sturdy frame for safety 3 beds in 1 with convertible twin/full size down bed Assembly required Upper/Down Bed Weight Capacity: 400lb Upper bed mattress thickness: 6'' Down bed mattress thickness: 8-10''