S.W.
I have 7 month old triplets. They all sleep in their cribs, and two are great sleepers (7pm-7am since two month old), the third sounds a lot like your daughter. He used to sleep 8-10 hours straight and lately he started waking up more. He goes down at 7pm, and was waking between 10-11. Then again around 2am, and 5am. We were exhausted! I used to give him a bottle, but last week I let him cry. It took 40 minutes of crying the first night. The second night he woke at 12:00 and cried for 20 mintues. The third night he didn't wake til 5:30. I didn't let him cry obviously since he had been asleep for nearly 10 hours. I fed him and put him back down. He slept until 8:30am. I know crying it out doesn't work for everyone, and I totally understand that as it was very difficult for me to hear him cry. But I just kept thinking to myself, "I'm helping him become a better sleeper". I know in the long run it will be better for him if he sleeps. I don't know if the cry it out method would work if he was sleeping with me. I'm pretty sure it wouldn't. If you're willing to try to move your daughter to her crib, that might help. If you want to continue co-sleeping, I'm not sure how to help. Good luck. I know interrupted sleep is exhausting...hang in there!