Hi Fish,

The salivary glands basically shut down when sleeping, and is worse with those who sleep with their mouths open. A humidifier may help. There are lycra chin straps for snorers to keep the mouth shut, and believe it or not, some I heard taped thier mouth closed, which some spouses may be happy with lol. To help with dry mouth, maybe drink a glass of water before sleeping, have some water handy table side, so you don't have to travel far at night. I also used Biotene dry mouth gel in my mouth, lips, tongue also before sleeping, as well as brushing and rinsing with Biotene dry mouth products in the evening. I also used the Biotene dry mouth spray, if I woke up at night taking a drink of water water, sprayed my mouth, and went back to sleep. Biotene changed the toothpaste formula, but I still stick with it, and is more readily available for me from the pharmacy stores.

I used Xylitol containing mouth lozenges in my water bottle, and it dissolved, and that helped with the mouth dryness, but never did it at night. The same with the dry mouth stick tablets. I never used them when sleeping, and doubt I would.

I hope this helps.