Why Am I Experiencing Dry Mouth at Night? What is Dry Mouth? Dry mouth is a common medical condition also known as xerostomia. This condition reduces saliva production leaving your mouth dry creating oral discomfort. Even though you may feel generally unpleasant from dry mouth symptoms, you may experience other health complications such as bad breath, poor oral hygiene, and even painful mouth sores.   In addition to these complications, experiencing dry mouth symptoms at night may lead to poor sleep and inadequate rest. […]