Nov 30, 2011 At His Mercy Just when you think you figured out something, you realized you still have no clue. Over time my wife and I figured out our son’s sleeping pattern, at least we thought. He usually sleeps three hours than needs to eat, change, eat, change over a one hour period. So, the other night we both woke up at 2:45am, and we were ready for him to wake up at 3am. However, he tricked us. He did not wake up until an hour later at 3:45am! We spent an hour watching him wondering if each sigh would lead to his eyes popping open. We lost even more sleep that night. We probably should have woken him up 3am, but someone told us never to wake up a sleeping baby. I guess we are still at his mercy.