Well, I tried it Saturday night, woke him barely awake at 4:00am, and he didn't wake up again until 7:00am. Then the next night I had my alarm set to wake him again at 4:00am but he started crying at 1:00am - I think it was gas because he wasn't awake. So I turned my alarm off (because I didn't want to get up again!) and he woke up at 5:30am again. However, last night, I was too tired to get up at 4:00am, but he slept from 7:15pm until 6:15am without a peep. I don't know if that was a fluke or not. But I want to wake him one more time at 4:00am to get him out of that habit for sure. I'll let you know what happens next! Good luck!