Workspace in bedroom is not ideal but can work very well for you if done right. Lack of space in the living area or an awkward arrangement of furniture that cannot be further rearranged are all good enough reasons to look for that space in your bedroom. The main rule is to keep it simple, do not overcrowd or clutter with too many items, try to keep most work stuff hidden while not in use. Also remember, if possible, to have a light source from the left if you are right handed and from the right if left handed.