We swapped the ladder for a staircase on our classic twin over full bunk bed. The ‘SUMO’ combines full bed on the bottom with a twin up top.Staircase makes it easy for kids to climb up top and plenty sturdy enough for grown ups as well. Each step has a deep drawer, providing built in storage to help keep rooms tidy.Perfect for a growing older child in a shared bedroom. Parents appreciate the extra room to stretch out at story time. It also provides comfortable sleeping quarters for adult overnight guests.Pairs perfectly with matching trundle bed to sleep one more, or opt to add underbed drawers for extra storage. Requires Twin and full-size mattresses.Patented rock lock system connects the beds securely and prevents wiggling. Simply “unlock” and separate for two traditional beds, or convert into another style entirely.