My daughter who is 3 months old just learned to roll over. She's doing a pretty good job, but sometimes has a hard time rolling back. Well last night, she started rolling over to sleep on her stomach! She scared the bejesus out of me because she was literally face down on the mattress. It didn't seem to bother her at the least. She eventually turned her head to the side. But none the less, its makes me super nervous! I would turn her over onto her back, but she was adamant and would just roll right back over to her side and stomach. Any advice??? I don't remember my son doing this so early. Do I let her be in confidence that she'll turn her head? Or is it too early for them to really know when they're breathing is restricted?