[moderator note]
That post, however, contributed nothing whatsoever and bumped a thread that’s been dormant for 8 months. Do not do that again.
[/moderator note]
freewill39 and or Mehrdadaus (if either of you are still around), do you breath through your mouth when asleep? I find that I do if I sleep in certain positions (but not others), and if I do this I have an uncomfortably dry mouth when I wake up (and the dryness may even wake me). It has nothing to do with dehydration, but you might try changing your sleeping position, or taking other steps to make sure you breathe through your nose.
Since the Zombie bump added nothing new, I’ll close the thread.
samclem, moderator