DS (nearly 4 weeks) sleeps much better swaddled, but he's far too good at getting out of it. We're currently using a portion of sheet that we used to wrap his sister in when she was a baby, but she generally stayed wrapped whereas he manages to get his arms out about 3 times a night! I've tried leaving his arms out in case he wants them to self soothe, but that just seems to wake him up and make him flail around. Most swaddling blankets I've seen just look like ordinary blankets, so I wondered if anyone has found one that's really effective? TIA!