No Nap = Sleeping in Chair

So I came home from work yesterday and Rachel hadn't had a nap.  Scott said she wouldn't go down for a nap.  Well she was doing things she wasn't supposed to so I ended up sending her up to her room to time out.  She was so mad and screaming that I just let her do that in her room.  When she got calmed down and had her two minutes I headed upstairs to check on her.  I went back downstairs and told Scott that she was napping now.  This was the first time I had seen her sleep in a chair like this.

We let her sleep like that for about 30 minutes since it was 5:00 and we didn't want her to sleep to long so that she would be able to sleep tonight.