Waking up with drool on your pillow can feel embarrassing, but it’s very common. In most cases, it’s a normal part of how the body behaves during sleep, especially in deeper stages.

As you fall into deep sleep, your muscles relax. This includes those controlling your jaw and swallowing reflex. When these relax, your mouth may open slightly and swallowing slows down.

Because of this, saliva can build up in the mouth. If it isn’t swallowed often enough, it may simply escape, leading to drooling during sleep.<<<…READ MORE HERE…>>>