[bpape]

I'd not go too crazy the floor just yet. Yes - a wood floor would sound better but I'd see what else is going to go on in the room first.

As for the window, yes, it would help to have drapes but the other side isn't really treatable either so you'd have a mismatch there in terms of symmetry. If it were me in that room, I'd look for some really nice wide vertical wood blinds - maybe something 2-3" wide and 1/8" thick or so, solid wood. You can turn those to tweak light and sound without killing one side and not the other.

Bryan