okay, I just did this. I waited a little longer--my son is 16 months--but I don't know if the age really matters. I waited because my son is small for his age, and truly seems hungry when he wakes up, and I thought he needed the calories. But my doctor assured me he should be sleeping through the night at this age, and I am doing my son, and myself, a disservice by allowing him to keep up this unhealthy pattern of waking during the night. So I decided to quit. (He has been weaned during the day for about 3 months.)
I took away one feeding at a time. The first was the worst one. I would nurse him at bedtime, and then he was waking at 12 am and 4:30 am. WHen I took away the 12 am, I had to let him cry it out. It took 3 days, and he cried about 30 minutes the first night, 20 the next, 10 the next, and maybe wimpered another night, can't really remember. It was hard. So I waited about a month before I tried taking away the bedtime feeding, because I dreaded the crying...and I found that if I just walked him around the room with the lights out, sang to him, and put him in his bed with his special blanket and his teddy bear, he just went to sleep! So after that had been working about a week, I decided to stop nursing all together--which meant to get rid of the 4 am feeding. Last night was the first time I tried to eliminate the 4:30 am feeding, and like you, I dreaded this--I was terrified that he would just stay up, and I would have to get up to. Who wants to start their day at 4:30 am?! SO, WHen he woke up to nurse, I got up and gave him a sippy with cow's milk in it, walked him around, sang to him (all this took about 5 min) and put him back in bed...and he went back to sleep until 7! I know that you aren't supposed to put them to bed with milk in a cup, but I figure after a while, he won't be waking up then, so I am not worried about it. I hope this continues to work for us! I hope your son will be this easy, too. I was expecting it to be much more difficult. GOOD LUCK!