Back to belly in sleep

My 2.5 month old daughter rolls from her back to her front while sleeping and I don’t know how to make her stop. I reposition her and she just rolls back over.

She has good head control and can roll from belly to back, but she loves to sleep with her mouth/nose pressed up against my chest and her blanket so I don’t doubt she’d do it in her bassinet.

I’m terrified of SIDS and that she won’t roll back onto her back if she needs to. What can I do to keep her from rolling? I don’t want to prop her...

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