I like the idea of having a simple shelf above the head of my bed. This would work with the idea of the box lights instead of a headboard - they could hang down from the shelf! And that shelf could hold all of my most treasured books!
this would actually be a really fun idea to bring light into the space. a ladder could go against the wall where the metal desk is now with string lights. it would be nice to see walking into the room from the hallway