oh boy - i remember the first time that DS rolled onto his tummy, DP & i stood over the cot for ages discussing whether or not we should turn him back over or not! i think we even rang his mum to get her opinion i'm not sure, but i thought the general rule was to stop swaddling once they could roll? i also asked my MCHN about it & she said once they can move to their own preferred position, it's pretty much fine.

and i'd guess that's what she's doing when she's moving around lucky she's not actually in the bed with you!