My mouth is dry at night and pasty when I wake up: what are the causes (and what can be done)?

Dry Mouth Upon Waking: Causes, Solutions, and Advice from a Dentist

Dry mouth upon waking, also known as xerostomia, is a very common condition. It is characterized by a sticky or pasty feeling in the mouth, a sensation of dehydration, and sometimes an unpleasant taste. While it is usually harmless, it can occasionally signal an underlying issue. So why do we wake up with a dry mouth, and how can it be relieved? Here are explanations and tips from a dentist.

Why Do We Have a Dry Mouth During the Night?

During sleep, salivary gland activity naturally decreases, leading to reduced saliva production. Saliva plays a vital role: it keeps the mouth moist, protects teeth, aids swallowing, and initiates digestion.

Another frequent factor is mouth breathing, often linked to nasal congestion, snoring, or certain nighttime habits. As air passes through the mouth for several hours, it dries out the oral tissues.

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