When he was young I would feed, but he tended to wake 3 x times a night for alot of months there. We used to have a bewitching hour aound 4-5 am where he was awake, from about 3 weeks to 12 weeks old. If I had already fed less than 3 hours ago I would do my best to hold him upright in my bed, until he was ready to fall back asleep in my arms. Then I would put him on the cot. Exhausting!
Then I discovered a food thickener, and this problem of long NW at night went away within a few days! His refluxing was very frequent, I could hear the liquid whoosing up his throat and see him jerk with every little reflux coming up. The thickener really stoped that. I kept feeding him 3 x a night though for ages, I was terrible at weaning the night feeds, even though he was an independent sleeper though the day
By the time he moved downstairs, (4 months old) I would just hang out with him on a chair in his room until he was asleep and pop him in the cot asleep or nearly asleep. Do what you got to do though, everything can be weaned later, its more important that you get some sleep now so you can keep your milk supply up and have a shred of sanity