How long is it safe to keep swaddling? I read somewhere that babies shouldn't be swaddled after 4 months. We tried putting DS in a sleeping bag last night and he spent the first 20 mins with his legs in the air blowing rasberries, then he cracked it and wouldn't settle until he was back in his wrap under his blankets. I really want to get him into a sleeping bag as he keeps kicking off the blankets or shuffling them over his face, but if he loves to be wrapped can I keep doing it?