Yes I'm 35 weeks Friday and wake up every few hours in the night for a drink.
It's been happening to me half of my pregnancy I'm 35 weeks pregnant and it's still happening. I keep Gatorade by my bed at night unfortunately it means more late night bathroom trips.
It could be because of nasal congestion. You may be sleeping with your mouth open.
I have had dry mouth thru out my whole pregnancy. Some things I find that help is using this mouth wash that is reccomended to diabetics my dad uses it anyways it was in cupboard at home so I use it now and it really helps . the mouth wash is called biotene you can get toothpaste too . I didn't find the tooth paste worked as good as the mouth wash. It is alot more expensive then regular mouthwash but it helps. What also helps is taking a glass of water and leaving beside your bed at nighttime. Thoses are a few of the things I been doing that help. I get dry mouth during day too so I drink more water and suck on mints.