DS stopped nursing at night with regularity at about 27 mons or so. He gradually cut back from nursing every 2 hours from the time he nursed to sleep, which he was still doing well into his 2nd year.
At 2 he would nurse to sleep at around 9 and would nurse once between 9-1 nurse at 1, nurse at 4 and then nurse at 7.
He then went to nursing to sleep at 9 and then not nurse till 1, nurse around 4is then nurse at 7 ish.
Then nurse to sleep at 9pm nurse at 1am, nurse at 5 then nurse at 8ish
Then nurse to sleep at 9pm, nurse at 5, nurse at 8ish
In the last few weeks he has nursed to sleep at 9pm and then not nurse or ask to nurse till around 8-9 when he wakes up.
He would occasionally say I want to nurse and I would either not respond (pretend to be sleeping) or I would just pat his back and snuggle him and he would more then not just settle back to sleep. Occasionally he would ask again or just try to latch on and then I would nurse him. If I tried to talk to him or say "nursies later" or "not now" he would get upset and I would then need to nurse him so I just figured out the above and it works for us. I still consider it child led as he is the one that initiated the whole thing and it is only occasionally that he will ask. Like last night at 3am he woke me to say he had to pee, I got up with him and he did not pee
but then I had to pee so he came with me. When we got back to bed I snuggled him up and a few mins later he whispered "I want nursies" but I pretended I was already asleep but had decided that if he asked again I would latch him on but he didn't ask again and didn't ask till 9am when he woke up.
Oh just wanted to add that DS still nurses during the day at least 3-4 times.