Dr. prescribed medication that he noted had a common side-effect of dry-mouth.
Sure enough, it's a common side-effect!! Even though I drink water like a fish, my mouth was still like the Sahara. I had bought "Biotene Moisturizing Mouth Spray" as preparation, and I used it, and it gave me relief for like 5 minutes, but then my mouth quickly transformed into the Sahara desert again. So then I spent a lot of time sucking on hard-candies, but I don't think my Dentist would be too happy about me sucking on hard-candies, especially for long periods of time as I try to sleep.
Basically, how is DRY-MOUTH treated (other than the ways I listed above -- drinking lots of water, mouth spray, hard candies) if one doesn't wish to switch medication?