Nighttime Drooling: More Common Than You Think
Drooling during sleep can happen to anyone, at any age.
It’s especially common during deep sleep, when facial muscles relax and the body shifts into recovery mode.
Saliva production doesn’t stop at night — but swallowing becomes less frequent. If saliva isn’t cleared naturally, it can escape.
This alone doesn’t mean something is wrong.
The key question is why the saliva isn’t being swallowed.
That’s where patterns start to matter.
Sleeping Position Plays a Bigger Role Than You Realize
One of the most common (and harmless) reasons for nighttime drooling is sleep posture.
Sleeping on your side or stomach allows gravity to pull saliva outward instead of back toward the throat.
This becomes even more likely if:
- your mouth naturally falls open during sleep
- your jaw relaxes deeply
- your nose is partially blocked
Back sleepers tend to drool less simply because saliva flows inward.
Position alone can explain many cases — but not all.
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