Sometimes I wake up and I've drooled all over my pillow. Is this normal?

Sometimes I wake up and I've drooled all over my pillow. Is this normal?

Mike Cirigliano, MD, FACP, is an associate professor of medicine at Penn Medicine.

Excessive drooling or nocturnal sialorrhea is not normal.  The body is very good at controlling saliva and if you find your pillow wet in the morning, you should get this checked out.The most common causes are due to either a problem with swallowing your saliva or making too much. Diseases can range from seasonal allergies and reflux to Parkinson's disease and abnormalities of the mouth. Some medicines can also cause it.  I would definitely recommend you get this checked out.