Not seeing the radiator unless you mean the thing under the window. Waht do you think you need the space for . I find people always think they will sit in there and read a book so if that is what you think do a chair or two with a nice table and lamp. Do you have a walk in closet maybe that would be a better use of the space. I think we need a bit better pics of the whole room

Yes, that's the radiator - odd looking thing for sure! This photo gives you a little better idea. I'm considering chairs on either side and kind of treating the radiator as coffee table of sorts.

That will keep your coffee hot!

Great idea....maybe pillows too

Chairs would be nice. I do sit in my bedroom chair a lot, but not everyone does. Would you? And is the radiator cover significantly larger than the radiator? If so, I might get a new one made.

Also, if you just want one chair, you could put a full length mirror on the other wall.

Can we see the other side of the room? Is your bed centered on the wall? Are there more windows in the space than the two we can see? What is the actual size of this area? The first photo made it look like a room unto itself but the second photo shows it really isnt that much room. More than one chair may make it feel cluttered near your bedside table.

Whew this is a hard room to photograph! Not sure these pics help. Yes, the bed is centered - it's a wide, shallow room. The other side has 2 closets and an outside door (so many doors). It's a pretty good size space - approx. 6' x 12' (to nightstand, so allowing room around the bed). Thanks all, I appreciate the advice!

That is an unusual radiator!! I would just treat it as a table. Add a comfortable upholstered chair, a lamp, and a couple of books. Maybe a simple cloth table runner for some color.