Drooling in bed at night may be related to poor oral hygiene or neurological dysregulation. Drooling in bed at night is a common phenomenon and may be related to poor oral hygiene. If you do not brush your teeth in time after eating, food residues or soft scales will accumulate around your teeth, stimulating the secretion of saliva and causing the phenomenon of drooling. In this case, you need to brush your teeth well, pay attention to oral hygiene, and brush and rinse your mouth in time. Drooling in bed at night may also be related to misaligned teeth. Malocclusion, protrusion of the upper jaw, upper and lower lips can not be closed, the upper lip can not completely cover the teeth when sleeping, there will also be a drooling situation. This condition requires orthodontic correction of the teeth. Drooling in bed at night may also be related to neurological dysregulation. If there is an abnormal regulation of the nervous system, it will give a wrong message to the brain, which will lead to an increase in the secretion of salivary glands, which will also cause increased drooling. Further examination is needed to avoid overuse of the brain and to pay timely attention to regulating the body to its optimal state. Drooling in bed at night may also be a result of incorrect sleeping position, where the salivary glands are compressed, and if the lips cannot be closed, drooling may also occur. Drooling in bed at night may be caused by poor oral hygiene, or it may be related to neurological disorders and incorrect sleeping posture.