Charlie, another good idea is to use Biotene products. I find that the oral gel helps me sleep much better at night without constantly waking up with dry mouth. I use the mouthwash 3-4 times a day and carry a bottle of the liquid spray with me to use while at work. It's available at most drug stores and supermarkets. A little pricey but worth it.

David R. 65 yr old male non-smoker, light drinker, stage 3 or 4, depending on which doc you ask, scc rt. tonsil, 2 nodes, 7 weeks radiation and chemo. No surgery. Teatment ended 3/20/08. PET scan 8/08 showed no cancer.
And now, as of oct, 2010, caregiver to wife, Linda, with breast cancer.
May, 2013, Linda diagnosed with stage 3 ovarian cancer. Enuf already.