That's exactly what we did - If dd was eating 5oz at the DF at 11pm, I would offer 4oz at 10:30pm for 3 days, then 3oz at 10pm for 3 days, then 2oz at 9:30 for 3 days, then 1oz at 9pm for 3 days, then nothing at all. It worked like a dream, and DD never knew the difference. I was so scared that going cold turkey would increase NW's. I think it also helps give baby the opportunity to slooooowwwllly increase those daytime calories while decreasing the night ones. Good luck!