Common causes include:
Nasal congestion
Seasonal allergies
Deviated septum
Sleeping position
Many people don’t even realize they’re sleeping with their mouth open until someone tells them—or they notice the symptoms.
- Certain Medications Can Cause Dry Mouth
A wide range of medications list dry mouth as a potential side effect.
Some common examples include medications used for:
Allergies
Blood pressure
Depression and anxiety
Sleep difficulties
Pain management
If dryness began shortly after starting a medication, it may be worth discussing with your healthcare provider.
Never stop a prescribed medication without professional guidance.
- Late-Night Eating May Be Contributing
Eating large meals
- close to bedtime can sometimes affect sleep and hydration patterns.
Heavy, spicy, or rich foods may contribute to digestive discomfort, which can leave you feeling thirsty or dry during the night.
Many sleep specialists recommend finishing dinner at least two to three hours before bedtime whenever possible.
- Dry Air in Your Bedroom
Your environment matters more than you might think.
During winter months or in air-conditioned spaces, indoor air can become extremely dry.
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