Ceri stopped her night feed (3 or 4am) between 10 and 12 weeks (so two weeks transition). I'd do everything to keep her awake enough for her 10.30/11pm feed though (cold face washers, tickling feet, undressing etc.) to ensure she had a full feed rather than a snack one where she'd just get the foremilk. Which I think helped a lot.

If you're worried about milk then try fenugreek, worked wonders for me. I only feed one side per feed (which is now 4 hourly'ish during the day 7am til 10pm)) so you'd think my boobs would dry up given they're only used every 8 hours but they're fine (though I do express the last used bb an hour after feeding).