We keep almost getting there and then a tooth comes in (at 20 months she's still getting teeth) or we travel or something and she starts wanting to nurse A LOT during the night.

My husband puts her to bed and she sleeps on her own the first half of the night, I usually cosleep the second half the night with her in her room. I don't really mind the arrangement since I'm getting enough sleep (except when she goes on milk benders) but we're TTC for #2 and that doesn't seem to be happening with night nursing.