😴 First, Is It Normal to Drool While Sleeping?
Yes — in many cases, it’s completely normal. Drooling happens when saliva escapes from your mouth during sleep, usually because your mouth is open and gravity does the rest. But why does your mouth open in the first place?
Here are the most common reasons:
- You sleep on your side or stomach: These positions make it easier for saliva to leak out.
- Your nasal passages are blocked: If you can’t breathe through your nose, your mouth takes over — and stays open.
- You’re in deep REM sleep: Your muscles relax, including those around your mouth.
