A small space idea, like a tree house in your room. Utilize all space with shelf stairs up to the bed box. Get a closet too and all of it up off the floor space. Great for a boys room. Put a BB Net on the bed and voila! they can play indoors.
Bunks in the closet, leaves the rest of the room as a play area. This is a GREAT idea! I would take the doors off though. Maybe cute curtains instead. I used to love hanging out in my closet. And to free up the room for more play area?