Why Do People Drool in Their Sleep and How to Stop It?

drooling in sleep

It is quite common for babies and small children who don’t have complete control over their mouths to start drooling while sleeping. We tend to see it as a cute and funny thing. But imagining grownups in the same scenario definitely won’t be that appealing. Slobbering or drooling is a situation where your saliva uncontrollably slides outside your mouth. The cause of that is the fact you didn’t swallow it often enough, so it accumulated.

There are many reasons something like this can happen. If you sleep alone, you probably won’t be worried about it or attach importance to it. But, if you have a partner who is lying right next to you each night, this can be a bit embarrassing. In order to prevent it from happening again, you first need to determine what causes this action, and then to try stopping it in a specific, most suitable way.

Causes of Drooling While Sleeping

If you wonder why do I drool when I sleep, here are some of the most common reasons.

baby drooling in her sleepSleep position

Side and stomach sleepers are more likely to experience drooling because of gravity. Your saliva will find its way out of your mouth easily, especially if you breathe with them wide open, or if you have narrow passages in a sinus area. So sleeping on your back on a quality mattress is a much better option.


The digestive condition called a gastrointestinal reflux disorder, or GERD can be another cause of this inconvenience. It happens when the content of your stomach goes back into your esophagus, which makes swallowing hard and uncomfortable. You may also feel like you have a lump in your throat. Both things can lead to excessive drooling.

Sleep apnea

This sleep disorder makes you stop breathing during the night for short periods of time, and it can be pretty dangerous. Besides loud snoring and sore throat in the morning, drooling is one of the signs that point to this problem, so it would be good to talk to your doctor about it.

Medications side effects

If you are using antipsychotic drugs (especially clozapine), or medications that are prescribed for Alzheimer’s, you may notice there is a drooling mark on your pillow after the night’s rest. It’s a common side effect, so you shouldn’t be worried. Also, some of the antibiotics can also cause this.

Swallowing disorder

A condition that leads to difficulty in swallowing is called dysphagia. Different kinds of health problems and diagnoses like Parkinson’s, MS, muscular dystrophy, or cancer can cause saliva uncontrollably sliding out of your mouth.

man drooling while sleeping

How to Stop Drooling in Your Sleep?

what causes excess salivation while sleepingChange sleep position

We established that it would be best if you could learn to sleep on your back. That way, you will avoid your saliva desert your mouth, and you will be able to control it.

Use home remedies

Try with some natural solutions like taking a bite of lemon wedge. It can be useful since citrus can make your mouth content thinner and less likely to pool. Also, drinking more water will do the same. 

Sleep with mandibular device 

You can purchase this oral appliance and put it in your mouth. It is proven that it can cut down on both snorings and drooling.

Go to surgery

This is quite extreme, but sometimes doctors suggest removing saliva glands entirely. Those cases are severe, based on hypersalivation or some kind of neurological issues, and they represent only the last solution.


Is drooling a sign of a stroke?

There are five major signs of a stroke. The first one is numbness of the face, leg, or arm. Then there is an immediate problem with speaking and seeing the loss of balance and control of your body that includes trouble walking and severe headache. That weakness person can experience inside the muscles of the face can cause extensive drooling

Is drooling a sign of pregnancy?

Yes, this can be a sign. Excessive salivation can happen in early pregnancy, and it’s usually associated with nausea and morning sickness. It can also show up again in the third trimester due to the fact that it is another period of rapid hormonal fluctuation.


Drooling or talking in sleep are things that most people are terrified of happening. That’s because they cannot control it, or even know it’s happening. Other than that, they find it as extremely embarrassing someone witnessing them saying something inappropriate during sleep, or leaving a puddle of drool on a pillow. You should know that you are not responsible for things you are doing unconscious and that you really shouldn’t be ashamed. Besides, things like drooling in sleep quite often can point out that there is some kind of problem with your health, or that you suffer from some type of sleep disorder, for example. Thanks to that, you will know that it’s time to go and see the specialist.  


6 Ways to Stop Drooling – https://www.healthline.com/

The best ways to stop drooling – https://www.medicalnewstoday.com/