M.B.
Putting a child down with a bottle is very bad for their teeth. And being that she's a preemie her teeth are at even more risk. So you definitely need to stop that. Is she finishing the bottle or is it more of a comfort thing? If she really needs that bottle then I would make it part of the bedtime routine. But she can't have that formula in her crib. And afterwords you will have to brush her teeth. And then if she still needs a comfort bottle with something in it I would just give her water. There will most likely be protest for a week or so, but you need to get it away from her. Also, does she take all of her feedings from a bottle? Or will she drink from a cup? Once you get the bedtime bottle thing down you really should toss the bottles all together. Give her a blankie or stuffed animal to cuddle at night in replace of the bottle. Let her pick out that special bed time only toy or something. But believe me when you start potty training you are going to want her to be off all drinks after a certain time. My two oldest are now 10 and 7 and have been potty trained for many years, but all liquids are still cut off for them after dinner. Even my 20 month old can't have anything to drink after dinner. I suppose that's a personal choice. Some people give their children a glass of water to keep on their night stand, but personally I've found that if you start the no liquids after a certain time it does make that potty training at night go a little easier. It's one less thing they'll feel like they are losing control over. But if you are dealing with weight and feeding issues with her because she was born so early, then I can understand that you still need to give her that nighttime feeding, but you should not be letting her go to sleep with any sort of milk on her teeth. You'll end up with lots of very serious teeth issues.