It all started when C figured out how to roll over, the other day. That night she was up several times after rolling over and then crying out because she was feeling stuck on her tummy. She didn't (and still doesn't) know how to roll onto her back. We got zero sleep.
By the third night she was content to sleep on her tummy. She got in a record 8 hours worth of uninterrupted sleep. [That was last night]. I went in this morning to find her waking up - on her tummy. She's so clever.
But we do worry. Because babies are not supposed to sleep on their tummies. [We all did, but that was a different time]. I am getting over my worry because I figure if she is choosing her tummy, and not crying out when she is on her tummy, then she must feel comfortable on her tummy.
Another case of C being on her own path in life.