Quoting J&T+3:" So I have been sleeping LO on his tummy for all his sleeps today, and he has been sleeping from feed ... [snip!] ... whole hours!!! Don't know if I'm ready to let him sleep on his tummy during the night yet though, but so far so good "What I have found eases my mind alot is my baby monitor. I got it as a gift, it is a video camera one and I LOVE IT! It allows me to actually see my LO without going in and possibly disturbing him, I can see him wiggle and move and then decide if he is actually awake or just readjusting himself. You can get them pretty much everywhere now and they vary in price range too, so some are quite affordable. Just mount it on the wall to see in the crib!