Sleeping on tummy

My little one has been rolling over since 5 months but he’s only just started doing it at night.

We put him to bed on his back but within seconds he rolls onto his tummy (he can roll from tummy to back and visa versa easily) he lies face down...

But I’m paranoid the whole night going in every 10 mins to turn him back round...I have goggled what to do but it’s mixed responses...do I leave him or keep trying to turn him back?