Baby girls rolling in her sleep 😬

Mu

So, my clever girl has started rolling onto her side and then on to her belly through the night. She gets her arm stuck and wakes me up. I know they say to prevent SIDS they should sleep on their back but she just rolls onto her tummy again. Is she okay to stay sleeping on her belly or should I still turn her onto her back until she learns to roll back over? It worries me just in case she doesn’t wake me up 😕