Beyond basic muscle relaxation and sleep positioning, other quiet culprits often join in to increase the nighttime flow. One of the most common triggers is nasal obstruction. When a person suffers from a stuffy nose due to seasonal allergies, a common cold, or chronic sinus congestion, the body is forced to bypass nasal breathing entirely and rely on mouth breathing. This constant airflow through the oral cavity dries out the tissues, which can paradoxically prompt the salivary glands to produce even more fluid to compensate, while the open-mouth posture allows that saliva to escape much more easily.
If you drool while you sleep, it’s a sign that your brain… See More onMay 18, 2026
