I tried the one arm out a few times, then both arms out for day sleeps, at just before 3 months, because I'd gone into his room often to find him lying with the wrap like two ropes around his neck - he'd tend to accept being wrapped, then struggle out of it after the end of a sleep cycle, and it freaked me out !

Josef is a real "busy arms" baby and I was worried he wouldn't be able to settle to sleep with his arms waving about in front of his face, but I gave myself a few days of absolutely NO PLANS so I wasn't stressed about him falling asleep by a certain time so we could later go out, and just tried a few different things to wean him.

With the two arms out and wrapping from chest, i just did that for one day before moving to the sleeping bag, I watched him fall asleep - and sure enough he did startle as his arms moved from his face slowly to the bed, BUT rather than rush in and re-wrap him, i just watched and he just eventually relaxed into bed. It did take a bit more time of self soothing but he got there in the end - he's much quicker now (he's now almost 14 wks).

I'm not sure if this is coincidence or not, but the very first night we tried NO wrapping at all (at 12 weeks), and his sleepingbag suit for the first time, he slept for a record 7 hours ! (previous record was 4 while being wrapped) - I think previously he'd been waking up between cycles, unwrapping, getting cold/crying, I'd assumed he was hungry and was feeding every 3 hours approx - he loves his sleeping bag, kicking inside it but still feels a bit contained. Admittedly I also sleep much better now, knowing that if i hear him talking to himself or struggling, he's still covered, and i dont need to get up unless he starts crying.

But every baby's different, I have friends who wrapped their bubs much later, and another friend who didn't wrap once they were home from hospital.