Sleeping on tummy


My LO has started sleeping on her belly (no matter how many times I put her on her back she goes to her tummy). Now she wakes multiple times (could be every hour) each time I give her her pacifier and she goes right back to sleep. I’m not sure if when she wakes she gets freaked out that she’s on her tummy and doesn’t know to roll back over. Before when sleeping on her back or side she would only wake around 4am for a bottle and then go right back to sleep. How do I help her to sleep comfortably without waking so frequently?