If you are short on space, but need to squeeze in a workstation, a small glass desk might be what you need. Clear or glass pieces of furniture are great small space hacks. The glass surface does a magic trick of looking invisible, so you get the function from your workstation without the obvious visual bulk.
This glass desk would work well in a bedroom. It isn't too 'worky' and would allow lots of light into the room.
This desk is part of the Gaia range
More info here