Hello everyone. My little girl started turning over on her tummy recently…

Hello everyone. My little girl started turning over on her tummy recently, and for the last two days she's been trying to roll in her sleep. Today she managed once, but woke up crying in her sleep. She sleeps in my pillowcase so I don't get her face dirty. But even like that, she manages to turn over. What should I do in this situation? Should I stop putting her in the pillowcase and just watch how she will sleep without it? But she will still turn over, wake up and cry. Even when she's falling asleep, she tries to turn over, even without her hands.