I always put my 8mo to sleep on his back as per guidelines. But when he sleeps he rolls to his front. He can't really roll front to back - he did it maybe twice when he first learned to roll and then never again.
I try to turn him onto his back but he wakes, cries and rolls onto his front again. I can hear him breathing. Is it ok to leave him on his front? I don't know what else to do.