i wrapped DD the first night back from the hospital and havent since and she is fine, she used to wake once a night (around 2am) and thats its. i never had issues with settling her. but my GF on the other hand her DS is 2 months older than my DD and she still wraps him, if she doesnt he doesnt sleep well (wakes himself up ect) i guess all you can really do is give it a try.
GL xx