Many of our teens and college students need an extra long twin mattress - here is the plan for that tall person! The ultimate room expander - you can sleep and study in the space your bed takes in the room. It works well in a room with standard 8-foot ceilings with enough room for an adult to sit under the bed and work at a desk! This loft or bunk bed measures 75 inches tall, by 42" wide, by 88" long with 58 inches clearance below. This Tall Loft Bed can easily accommodate an adult seated at a desk below and adult weight on the bed.