Baby rolling in sleep

Baby is 7 months old now and is turning onto his side during sleep. I don’t mind the side sleeping much but that eventually turns to tummy sleeping. I get scared cause I think he might be too tired to lift his head up when he can’t breath. Tummy sleeping is also waking him up making him do that tummy time position. If I’m awake I flip him over onto his back. When I’m sleeping idk what’s happening. Will my baby be in any danger doing this? He sleeps swaddled but both hands out. He’s been rolling from tummy to back but just learned how to roll back to tummy. Help please.