I feel your pain! My DS is almost 10 months and has been doing the same thing for about 3 months now. First it was waking maybe 2-3 a night but now it's getting closer to 8-10!! He just a keep rock or feed back to sleep but the broken sleep is killing me. He got his first tooth a couple of weeks ago and now has another 3 coming so I guess it could be that. Can't give you any advice but I hope it passes soon (for both of us ).