Thanks for responding! I just started yesterday. I did a clusterfeed and his last feed was at 6:30 pm, and I decided to do a df at 10:15 pm. He woke up 3 hrs later (which he never does), and I fed him, and then he woke up again at 4 am and I fed him again. Before starting doing a df, I would feed him at 6:30pm and he would wake up at about 3 am, and then again between 7-8 am. Also, when I cluster feed, do I still feed him the usual 4 oz I do throughout the day? I used to be feeding him 4 oz every 4 hours. 4 oz every 3 hours seems like a lot of food and I dont want him throwing it up. I just dont want to overfeed him. He is 5 weeks old. Your response is greatly appreciated!