His last feed is right before he goes to bed- usually about 7:20. And he has also eaten at around 6 as well, so it's just a top up. About 2 weeks ago he started waking up occasionally right at 10:30, which is when I usually did the df. But since then, he has woken us at 10:20, then 10, and last night at 9:15. I feed him one other time during the night, around 4 or 4:30. I had started to only feed him on one side at that feeding, because he wasn't that hungry when he woke up in the morning, which I figured meant he didn't need to eat that much at night.
The problem with me keeping the df is that my husband and I work with college students, and I need to be out of the house one or two nights a week until 10:30 or 11. And ds doesn't take a bottle, so I'd be in trouble if he keeps waking up. I don't mind him continuing to feed during the night that one time, even if I have up his intake of food at that feeding...
Also, he is on about a 3 to 3.5 hr easy. his naps are really inconsistent, so his eating times depend on whether he naps well or not.