It may be time to get some more space in your bed - either by putting DD in her own cot/mattress on the floor, or by moving both of you onto a big mattress on the floor.
THe advantage is that you don't have to worry about her falling out so you're not holding her all night and you can have room to roll over.
ALso, if she doesn't have a boob under her nose she may not feed as often.

Can you encourage cluster feeding during hte day, and also really teach her about day - get her out and about and seeing the sun and so on as much as you can.

good luck and hugs.