I feel like a new woman today! Here are a few things I changed for those of you who are also having trouble:
1. I moved to the spare room - the matress is softer, and I could toss and turn all I wanted without feeling badly for keeping DH awake.
2. I turned the air conditioner on (and I live in Canada!), so it was nice and cool in the room
3. I put a humidifier beside my bed.
4. I put a pillow on either side of me, so when I flipped from side to side, I didn't have to lug my pillow with me. I was surrounded, and it was fantastic!
5. For some reason (I still don't know why), I only got up to pee once. Bliss!