Certain other factors may increase saliva production. Acid reflux can sometimes trigger extra saliva as the body responds to irritation, while some medications may also cause increased salivation. Occasional drooling generally isn’t something to worry about, but persistent or excessive drooling deserves more attention—especially if it appears suddenly or happens along with difficulty swallowing, choking, frequent nighttime coughing, or other unusual symptoms.
A few simple changes may help, such as addressing nasal congestion, maintaining good sleep habits, staying hydrated, and experimenting with a different sleeping position. If you think a medication may be contributing, talk with your healthcare professional before making any changes.
So, if you occasionally wake up to a wet pillow, there is usually no reason to feel embarrassed. For many people, it is simply one of those ordinary things the body does while we sleep. What seems strange in the morning is often just a sign that your body was completely relaxed during the night.
