Introduction: THREE BEDS IN THE SPACE OF ONE!!
Instead of wasting room by placing three beds right next to each other you can have a bunk bed and a mattress that slides away so you can have more room during the day.
Step 1: Mattress
Make sure you have a mattress that can fit beneath your bunk bed.
Step 2: Bunk Bed
You'll need a bunk bed with tall legs so the mattress can fit.