Many people notice that they drool while sleeping. Though often embarrassing or inconvenient, this phenomenon can actually reveal surprising insights about your health. Nighttime drooling doesn’t happen by chance — it’s your body’s way of communicating something.
First of all, drooling during sleep often means the facial muscles are relaxing. When you fall into a deep sleep, your mouth muscles loosen, allowing saliva to escape. This happens more frequently if you sleep on your side or stomach — gravity does the rest.
