This is a great use of a bonus room, often found above garages in late 90’s construction onward. In addition to making it a huge playroom, how about bunking all your kids on one room? I love the staircase. Little book shelves for their reading, separate lights, and this is just about the smartest custom build I can think of. *Picture found on Pinterest – not sure of the source, but props to whomever designed this beautiful room.