Lo is 18wks old and over the last few weeks his sleep has been terrible. I'm hoping that by swaddle weaning, he'll be able to learn to use his hands to help soothe himself. I don't want to do sleep training yet, per se, because I know this isn't the best developmental time for it (according to Mrs Bee's post on the subject). But I figured swaddle weaning would be a start. So I just put him down for a nap with one arm out. My question is, how long do you do one arm out before transitioning to both arms out? And then how long til you go to a sleep sack? I know some people do cold turkey but I'm a little too scared to do that! And did you do it for naps and at night right away, or should we see how naps go for a certain period of time?