Hi, J..
My daughter is also 10 month old and she wakes up once or couple time a night. She used to sleep 12-13 hours straight when she was younger, but when she was sick from her day care all the time, it completely changed her sleeping pattern. The doctor said that's normal when babies get sick. Well, since I was not happy with the daycare and she was getting sick with whooping cough, viruses, pink eyes, and me getting sick with hand foot and mouth disease from there, she's out of daycare now and I work for my client from home for now.
She has 3 teeth now and another one is about to come out. I also think this teething thing is definitely waking her up. She eats well and I nurse her before bed, but she still wakes up couple times a night. She doesn't cry, but she just wakes up, and I guess to make it easier for myself and her, I feed her when she does wake up. I've read that I should give her water so that she knows that it's not worth waking up at night, but that doesn't help.
I am just hoping that after all this teething is over and she feels less uncomfortable, she will sleep better and through out the night. They do say their sleeping pattern changes, so maybe both of our dauthters are just going through a stage.
Sorry, I was not much of help but I just wanted to share my story.
Take care and good luck.