With stairway attached to the bed, this kid-friendly bunk bed offers easy and safe access to top bed. Full-length guardrails attached to the top bed ensures safety and sturdy frame provides stability. The down bed can be converted from twin size to full size, allowing flexible use of it. The stairway comes with two drawers, along with the space-saving staircase and inseparable under-bed drawers with wheels can store away other stuff. Truly an ideal space-saver, this bunk bed is a perfect choice for those in pursuit of being organized. Space-saver: comes with drawers, staircase and inseparable under-bed drawers. Convenience: wheels attached to drawers makes it easy to pull in and pull out. Safety ensured: full-length guardrails and solid frame 3 Beds in 1: twin size upper bed and convertible twin/full size down bed. Material:Pine wood+MDF Upper/Down bed weight capacity:400lb Upper bed mattress thickness:6'' Down bed mattress thickness:8-10''