I have noticed this last week that when I wake up my mouth is extremely dry and fels awful. I have spit in the sink and saw brown salvia . Don t know what is causing it as this doesn t happen during the day. I have had dry mouth at night for quite awhile. What should I do or would should I go see. C. H. Thanks anyway.
Most probable reason of brown saliva could be blood in your saliva .  Chat Doctor. .  Consult a dentist to get a check-up. You may need a full mouth scaling. For the time being you can start with Hi-Ora GA (gum astringent) mix it with residing M gel (chlorehexidine + metronidazole) and apply over gums 5-6 times daily . Start using a good chlorhexidine mouth wash mix it with Luke warm saline water and rinse your mouth 3-4 times daily. Medicines are for symptomatic relief only. Professional examination is required.