2. Morning breath
Waking up with morning breath can leave your mouth feeling dry and grimy. While you sleep, your saliva production slows down and odor-causing bacteria begin to breed, leaving you with the kiss of death when you wake up. Brushing and flossing your teeth before bed will help keep your mouth clean during the night. Since saliva acts as a natural mouthwash, try to breathe through your nose to prevent your saliva from drying up. The best way to rid your mouth of foul morning breath is to get up and brush your teeth.