DD started sleeping through the night at 6 weeks, but she still had a bottle right before bed. I'd say around 6 months was when her last bottle was at dinnertime.
around 9-12 months we stoped nursing in the night but I never minded it cause we moved a couple times after she was born so it was something familliar to her.
My son has been sleeping straight through the night since he was born he is 9 mo old now, but my daughter is almost two and still wakes up every few hours but that is because she has acid reflux. My daughter still falls asleep better with a bottle but I put water in it. My son falls asleep with his pacifier most nights that started around 3 or 4 months.