Health + Wellness

Drooling While You Sleep: The Symptom You Should Pay Attention To


drool while sleeping

If you drool while sleeping, you’re probably familiar with drool stains on your pillow and having to wipe your mouth when you wake up. You also may have noticed that saliva leaks out mostly when you sleep on your sides and rarely when you sleep on your back. That’s because, when you sleep on your back, saliva settles at the back of your throat and eventually drains down.

There are different glands that contribute to the production of saliva. And the amount of saliva your body produces while you’re asleep is quite less than while you’re awake.

In the resting state, the rate of secretion of saliva has been estimated to be 0.3 to 1 mL/1.7 m2/min. You don’t drool when you’re awake because you swallow up the saliva. But when you’re sleeping, you’re relaxed and so are your facial muscles. Hence, whatever saliva the glands produce gets accumulated in your mouth, which then leaks out of the mouth because you don’t swallow it.

Coming to the clinical indications, drooling could be associated with the following seven mild to severe medical complications.

drool while sleep1. Improper Sleeping Position

When you sleep on your side or your stomach, your mouth often opens as you relax, and saliva can dribble out. But when you sleep on your back, you naturally swallow during sleep, which prevents drooling.

2. Allergies

Allergic rhinitis and certain food allergies cause over-production of saliva resulting in drooling. Read about six everyday things that can cause allergies.

RELATED: The Worst Sleep Position for Your Body 

3. Acidity or GERD

Scientists believe that acid reflux episodes cause gastric acid to stimulate the esophagus, as a result, the esophagosalivary reflex gets excited leading to excessive saliva production.

4. Sinus infection

Upper respiratory tract infections are usually associated with breathing and swallowing problems, which cause drooling due to the accumulation of saliva. Also, when your nasal passage is blocked due to flu, you tend to breathe with your mouth, which causes the excess saliva to flow out while sleeping.

5. Tonsillitis

Tonsillitis is the inflammation of glands called tonsils present at the back of your throat. Due to

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