My 4 1/2 mth old has just started turning onto her tummy in her cot and I'm worried this isn't safe. She usually does it just after we put her down to sleep 7pm or i will find her like this early in morning eg 5am (I assume she has just rolled over as I hear her stir but maybe she's been like it for hours) then she will wake properly between 6 and 7am. I turn her back over at 7pm but have been leaving her at 5am as i don't want to wake her (but then lie awake myself worrying). During daytime play she happily rolls from back to tummy but far less frequently rolls from tummy to back so I am not confident she could do so at night if she has breathing difficulties, especially when her legs get kind of twisted up in the sleeping bag. Has anyone else had this problem, what did you do?