Bob,
I never drink water by the bed in the middle of the night. I find that I wake up approximately once needing to urinate, and , with the very dry mouth. I rinse out my mouth in the sink with water and thin put a little bit of Biotene Oral Balance on my tongue. The stuff does not work as well as claimed by Biotene, but it does help. I think that a drink of water just does not last.

I hope that this helps. Take care.

Danny G.