I bought Biotene but does nothing for sleeping. I left some in a cup by bed and sipped/spit it middle of night when I woke and might've helped a little but not like Im looking for. I think the Acthar Gel is what put me over the dry mouth edge.

The tape idea mentioned wont work for me- nose is always stuffy which compounds the problem.

Bought 20' of tubing for my new oxygen concentrator so that should help nose/keep mouth closed somewhat. I needed hose because it's a touch noisy so havent used it while sleeping. Will tonight hoepfully. Ive been using it as I crank my hand cycle. Works. You exercise till muscles cant go anymore. Breathing's not an issue.