LO was sleeping OK for a while just in his sleep sack, but after he discovered his hands they seem to be a hindrance more than a soother. He wakes up and starts sucking them but rarely goes back to sleep. So I started swaddling him again and he napped better again, plus it was easier to get him back to sleep after the 45-minute intruder when his arms aren't flailing all over. But at almost 3 months, should I be letting his arms free even if he doesn't sleep as well? I don't want to hinder his development, plus he really loves his hands in his mouth. But I also know he needs better sleep.
What to do, what to do?