Here are some rooms I am looking at for inspiration:
I decided to keep the chair in their because he likes it, but I put the edge of it by his mattress so that if he falls off it he will simply fall onto his mattress only a few inches down. I left the decorations we had up high, but I am going to put some down low for him too. Here is my start (It isn't finished, but it was a quick fix for now)
We tried him in his new room and he LOVED playing in there. It does take him a LONG time to go to sleep and after "naptime" we took him downstairs for supper and within seconds he was like this:
Silly boy played so much he tired himself out. I am just happy he adjusted so well to his room. I really expected him to kick up a fuss. When we changed around the living room he did. I think the fact that I left as much the same as I could may have helped him adjust. I think he liked having freedom to run around his bedroom helped too. I could hear him running around a lot, but every time I peeked at him, he was sitting on his bed with his monkey pillow in his lap, rocking hard.