Dry Mouth When You Wake Up? Don’t Ignore These Common Causes

2. Mouth Breathing During Sleep

Breathing through your mouth instead of your nose can dry out saliva and lead to irritation. This often happens due to nasal congestion, allergies, or sleep habits.

3. Certain Medications

Many medications can reduce saliva production, including antihistamines, antidepressants, blood pressure drugs, and diuretics. This side effect is a common cause of chronic dry mouth.

4. Sleep Apnea