Jacob was only wrapped for a few weeks too. He always wanted to get his arms out and have them up by his head, so we decided we'd see how we went with leaving him unwrapped. He was fine......probably because at that stage he was still in his bassinette, which meant that he was tucked in nice and snug anyway (i.e. a lot more closely than would have been the case if he was in a cot IYKWIM?).