I get that dryness too , but I just take a little biotene mouthwash swish it for about 30 seconds, the a little water and i get some slobbers going. It doesn't last all night but maybe for a couple of hours. Maybe a little hydrocodone solution helps too if you have it.

Since posting this. UPMC, Pittsburgh, Oct 2011 until Jan. I averaged about 2 to 3 surgeries a week there. w Can't have jaw made as bone is deteroriating steaily that is left in jaw. Mersa is to blame. Feeding tube . Had trach for 4mos. Got it out April.
--- Passed away 5/14/14, will be greatly missed by everyone here