FYI, Jim, I was diagnosed with sleep apnea about 4 years ago, so I use CPAP every night. I have to be careful to use the humidifier with it, though, or my mouth and throat get really dry, especially now that it is winter (well, not officially, I know, but I shoveled 5 inches of snow off the driveway this week, so it's winter!).
You might talk to your doctor about a referral to a sleep center for evaluation. Lots of fun, they put about 20 wires around your head and chest, a few straps, and tell you to sleep well!
Jeff