I've been working with Caleb to teach him to pull up. Everyday at swimming lessons he stands facing the bleacher behind us. He was moving down the bleacher by himself today. Well, when we got home, I fed him and put him down for a nap. I walked by a little later and heard him sucking on his paci and peaked in. Here's what I saw... All by himself, he pulled up and was standing in his crib! Needless to say, the rail will stay up all the way now.