Thanks for asking CPAP SupplyUSA.com
Many things can cause dry mouth. Sometimes medication can cause this.
A heated humidifier is of course recommended. Are you using a nasal mask? Is it possible that you are a mouth breather? A full face mask might
help.
Keep yourself well hydrated during the day also.
I hope this helps.
Anyone else have any suggestions or ideas? We welcome your comments
Debbie Shirley,RRT