For the past few weeks, my LO has been waking at night to eat. at least i thought he was hungry. however, through a couple of experiments while co-sleeping and even some nights in the crib, i find that when i roll him over to his belly, he will fall back asleep. so, i'm guessing maybe he's not really hungry, just wants to sleep on his belly. Is this ok? I always start him out on his back, but then turn him over if he wakes in the night. he's 18 1/2 weeks old and he just rolled over last night from his belly to his back. i'm going to ask the doctor on wednesday since we have a well baby visit, but wanted to know what you all thought.