My older two boys share a room and sleep in bunk beds. Since we moved them to bunk beds it's been great as it has opened up a ton of space in their room for quiet time away from the chaos of the rest of the house. I love bunk beds.
12 Great Kids Rooms: Susanna Cots, whose interior design studio is based in Barcelona, conceived this ingenious two-level space with a raised bed under which is tucked a dresser and pull-out desk. Fun and functional for sure.