I dont get it ever since ryan was 3 months old he has slept from around 10.30-11 pm till the EARLIEST 6am but most of the time around 7 then he would have a bottle and go back to sleep. But the last 4 nights hes been waking between 4-5am??!! i give him a bottle and he either drinks all of it or just an once then goes back to sleep till maybe 7? then go back off to sleep till around 9-10am. I started giving him one meal a day about a month ago and i wasnt sure weather maybe he was waking because he was hungry? i dunno what to do lol