5.5 month old stomach sleeping

Hi hi!

My 5.5 month old (4.5 month adjusted) baby recently started rolling over to his stomach in his sleep. Scares the crud out of me!

He can roll from back to belly but hasn’t quite mastered the belly to back roll yet. I try to flip him over when I catch him but he either wakes up and fusses or immediately rolls back over onto his tummy.

Is this okay??? I’m just worried about him not rolling back over (he’s done it like once or twice during tummy time).

I obviously lay him on his back to sleep and he only sleeps in a sleeper and the sheets are tight in the pack n play. I just need peace of mind so I can sleep 🥴