I was worried with Charlie too, though he's been sleeping through the night ever since we stopped wrapping him. As he can sleep on his side, seems this is what he likes. Like someone said, once they start moving there's not much we can do about it. I was worried as he's always all over the cot now, so I put him in long Pj's & a sleeping bag appropriate for the weather & have taken out all blankets. He just has his small wrap that he cuddles. This way I don't have to stress about him getting tangled etc.