J.T.
You definately need to take the bottle away as soon as possible. Try a pacifer or something. My son slept w/ a bottle and ended up developing Baby Bottle Decay. The formula started to decay his teeth, and now at 4yrs old he is scheduled for extensive dental surgery.
We had the same problem, he would only sleep if he had a bottle, then he switched to sippy cup w/ only water in it...but that didnt help his teeth either.
I know it will be a hard few nights/ sleepless nights, but you must break the baby of the bottle at bedtime/naptime.
If she is hungry, then feed her the bottle, but make sure you get her up to do it. Lay her down w/ a pacifer (or whatever you prefer) instead. With a little time, she will understand the difference.
~Good Luck!~