C.S.
Are you breastfeeding? If so, she may still get up to nurse until about 9 months! If not, you should try letting her cry it out! I know it's hard, but it works, and if you stickwith it, it hopefully will only take a few days. As long as you know she is not sick, I would let her cry it out. I had to do this w/ all 3 of my children, and it worked wonders. After about a week, they all slept through the night! Good luck.