J.C.
There is no reason a child this age needs to be night feeding. I would stop it and find other ways to comfort her. I used cio, but I would only let them cry for 5 minutes to see if they would self comfort. If not, I would go in, but not pick them up if I did not have too. I would rub them and sing softly until they calmed, and than leave. If they fussed again, I would wait anther 5. I almost never had to go in at night, but I started this young so they never learned bad habits. They were both sleeping through the night by around 2 months. Since she is older, the bad habits she has learned will be harder to break and may take a few nights, long nights, but in the end it will be worth it when everyone gets a good nights sleep.