I wonder about the teething as someone else mentioned. There are Highland teething tablets that were helpful for some of my kids. They have them at some Publixes or at health food stores. They're all natural with stuff like camomille(?sp). Also, if you could try and go to bed early yourself a few nights a week, you might find this less stressful. The babies can sense when we are stressed and she may be picking up on this as well. I did a "Ferber" approach with one of my kids, can't remember how old she was. When I went in I "never let her see me sweat" so to speak. I tried to be calm cool and collect, say some compassionate things, like, oh dear, you're having trouble sleeping" and then I would lay her down and rub her back. She would reach for me and that was truly hard but I had decided to give this a 4 day try to see. I would do the wait thing, go back in in 5 minutes, then 10 minutes, so forth(I think-it's been awhile) She did learn to settle herself but it was hard.
So, you are the one to decide what's best for your situation. Good luck and remember, this is a phase that she'll grow out of now matter what. Listen to your mother's heart. You're doing a great thing on taking a poll here as whatever path you choose, try and be confident with it as your little one will sense if you're uncertain. Also discuss this confidently with your hubby. Get him on board with whatever path you choose because it does effect him as well. And he can be your best supporter or your worst underminer. We as moms tend to research these things out and then I would try and share a "condensed" version for my husband so he felt included.
And if one method doesn't work, try another.
Take care,
LaurieK
www.mymonavie.com/LaurieK