oh that was my favorite stage, when she would roll onto her tummy but couldn't roll back - there was only so long she could hold her head up fighting sleep before she would give in and lay down and fall asleep!! relax and enjoy :-)

you can't stop them moving about and personally i don't think its right too, they will eventually find their own way of sleeping, and they have to get used to bumps from the cot bars, its inevitable..... i've got lots of little bunny rugs against the sides of the cot and the bumpers up so she doesn't bump her head too often, my girl is going on 8 months though so is probably a bit stronger and better with navigating and moving blankets etc..... there is no 'smother issue'.