Carson's undressing himself?

By now you know we always check on the boys before we go to bed. Mainly, I make sure Carson has covers on, because he hasn't quite learned how to do that yet. This is how I found him the other night. He had no covers on (as usual), and one of his arms was completely out of his shirt. Every time he wears these pajamas he's always trying to undress himself. I think it's because these pajamas are more loose fitting than all of his other pajamas. Chris put Carson's arm back in, and Carson didn't even move. He was OUT!