You open your eyes, still a bit groggy, and then… surprise: your pillow is damp, and so is your cheek. A bit embarrassing, right? Yet this little nighttime inconvenience is more common — and more revealing — than you might think. And what if, far from being a problem, it was actually a positive signal your body is sending you? Let’s zoom in on a phenomenon that’s as natural as it is intriguing.
Drooling while sleeping: a sign of deep sleep?
It may be hard to believe, but yes: drooling at night can be proof that you’re sleeping… deeply!
When we enter the most restorative stages of sleep, our body fully relaxes — including the muscles in the face.
Result: saliva no longer flows naturally toward the throat and may end up on the pillow.
Reassuring, isn’t it? It’s like your body is telling you: “You’re finally resting the way you should!”
A matter of position (and gravity)
Do you sleep on your stomach or on your side? That’s the perfect position… to drool.
Gravity plays a simple role here: it guides saliva outward.
On the other hand, sleeping on your back often prevents this effect, since we swallow more easily without even noticing.
Changing sleep habits isn’t easy, but trying to fall asleep on your back — with the right pillow — can be enough to reduce nighttime drooling.
Extra tip: an ergonomic pillow can help you adopt this position more comfortably.
A blocked nose? There’s your culprit!
Another common — and less pleasant — cause of nighttime drooling is mouth breathing due to a blocked nose.
A short-lived cold, allergic rhinitis, or a mild sinus infection: when air can’t pass through the nose, the mouth takes over.
And when the mouth is open, saliva has no supervision…
Here are a few simple ways to avoid this:
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A seawater-based nasal spray before bed
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Steam inhalation or nasal rinses
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A humidifier to prevent dryness in the mucous membranes
A clear nose often means a dry pillow in the morning!
Read more on the next page
