Top Reasons Behind Dogs Sleeping With Their Tongues Out

Ever notice how your dog sleeps with its tongue sticking out? While it might seem strange, dogs frequently engage in this activity, and there are a number of reasons why they do it. Your dog could be sleeping with its tongue out for a number of reasons, ranging from simple happiness and comfort to genetics and medical concerns. 

In this post, we'll discuss the causes of this behavior and examine any concerns it might give rise to. 


Top Reasons Behind Dogs Sleeping With Their Tongue Out 

Dogs frequently sleep with their tongues out for the following reasons.

1. They’re very relaxed 

The likelihood of a dog sleeping with its tongue out increases when it is completely relaxed, possibly dozing on a plush dog bed

During sleep, all muscles—including the tongue—relax. The tongue might just swing out of the mouth because of this. 

A dog's jaws might just open while it is profoundly asleep and extremely relaxed, allowing the tongue to protrude from the mouth. The human race is not exempt from this.

2. Their have longer tongues

Even when people sleep with their tongue out, it doesn't go very far since there isn't much tongue that falls out of the mouth—it measures only approximately 3 inches from the tip to the oropharynx in the throat. But compared to humans, dogs have tongues that are noticeably longer for their size. 

It seems sense that dogs need wider tongues than people do because they use them to drink water, brush themselves, and control their body temperature via panting.

Fun fact: According to Guinness World Records, a boxer named Brandy had the biggest dog tongue ever measured, which measured 17 inches (43 cm).

3. They are of a certain breed

Speaking of tongue length, some dog breeds, particularly those with short noses like pugs, boxers, bulldogs, and Pekingese, have tongues that are unusually lengthy for their mouths. They are more inclined to fall asleep with their tongues out as a result.

4. They feel hot

As you undoubtedly already know, dogs don't sweat as much as people do to stay cool. Dogs primarily regulate their body temperature by panting. 

Your dog's tongue can come out of its mouth or merely protrude a little, according to how hot they are, to assist them in controlling how warm they are while they sleep.

5. They might be feeling dehydrated

Dogs also have the habit of sticking out their tongues when they are thirsty; hence, it is possible for them to sleep with their tongues out for the same reason.

6. They may have teeth issue

The teeth hold the tongue in the mouth, which is one explanation for this. Because there is nothing to keep the tongue in when a dog has missing teeth, facial or jaw abnormalities, or both, it may sleep with its tongue out.

7. Injury might be a reason

If your dog suddenly begins to sleep with its tongue out might have suffered a tooth, mouth, or tongue injury that makes sleeping with its tongue out more comfortable. 

Check your dog for injuries if you've never spotted them sleeping with their tongues out before.

Interesting Facts About Dog Tongues

Love the adorable tiny tongue of your dog? We concur! We thus thought you might like some dog tongue knowledge! Here are some facts about the dog’s tongue that you may not be aware of.

1. A few kinds of dogs have blue tongues

Sounds absurd, huh? Nobody is precisely sure why, but Chow Chows and Shar-Peis both feature blue or dark tongues;

However, this can occasionally make it challenging for vets to assess their wellness solely on the color of their tongue. Any other breed with a tongue that was once pink but is currently blue is oxygenating poorly.

2. Human tongues are not more hygienic than dog tongues

Have you ever heard the rumor that dogs have cleaner lips than people? Well, it's simply untrue! Additionally, both carry more than 600 types of bacteria. The next time that your dog tries to kiss your face, you might want to reconsider.

3. The manner your dog barks may be impacted by their tongue

A dog's tongue influences its barking in the exact same way that your very own tongues influence how you speak.

4. Dogs' taste buds are smaller than those of humans

Dogs have a greater sense of taste than cats, but in reality, they "have about one-sixth of the amount of taste buds as humans." 

Dogs can taste bitter, sour, sweet, salty, and sweet. More crucially, though, their scent influences what they perceive as appetizing to eat.

Who knew a dog's tongue contained such interesting information? Our dogs are lovely, highly complicated animals. And the more we learn about them, our connection to them strengthens.

Actions To Take For Dogs Sleeping With Their Tongue Out 

If no other symptoms exist and your dog has been sleeping with its tongue protruding, it is likely innocuous. 

However, some breeds, such as brachycephalic dogs like pugs and bulldogs, are more likely than others to thrust their tongues out. 

Taking a picture of your pet while they're in this pose is the most beneficial thing you can do. To be on the safer side, you can then present it to your veterinarian.

How Often Do Dogs Sleep with Their Tongues Hanging Out?

How Often Do Dogs Sleep with Their Tongues Hanging Out?

Dogs can sleep in various positions, but one popular one is with their tongues sticking out. However, individual dogs and breeds can differ substantially in how frequently they sleep with their tongues out.

1. Due to their physical makeup, some dogs instinctively sleep with their tongues out.

2. With shorter snouts than other breeds and a propensity to sleep with their tongues out more frequently, brachycephalic breeds like Bulldogs, Pugs, and Boxers may do so. 

3. Particularly when they are at ease and sleepy, their facial anatomy may make it more challenging for them to keep their tongues completely inside their mouths.

4. Other dogs may occasionally, or under certain conditions, sleep with their tongues out. It might be brought on by unwinding, weariness, or settling into a comfortable position. 

5. Additionally, certain medical problems or medications may relax muscles, which may cause the tongue to protrude while you sleep.

It's important to note that sleeping with the tongue out is typically not cause for alarm unless it develops into a persistent or chronic issue. 

However, seeing a vet to rule out possible medical problems if you detect any changes in your dog's respiration, pain, or excessive drooling connected with the tongue hanging out while sleeping is advised.

Ultimately, each dog is different, and their sleeping positions might vary, including where they rest their tongues. It adds to their charm and uniqueness as our canine friends.


Dogs frequently sleep with their tongues out for a number of reasons, from comfort to genetics. Even though it's mostly safe, it's always a good idea to speak with your veterinarian if you have any concerns about your dog. You should take action if your dog starts panting at night because it can indicate worry. Contact your veterinarian and look into possible remedies if you suspect your dog may be experiencing anxiety.

Frequently Asked Questions

How can I tell if a dog has a seizure when their tongue is out?

A seizure can be diagnosed in a sleeping dog if it twitches uncontrollably, paddles its paws, drools excessively, loses consciousness, or makes vocalizations. Consult a veterinarian for the correct diagnosis and advice if you believe you are having a seizure.

Why did my dog’s eyes open suddenly while he was sleeping?

Due to REM sleep phases, when dreaming takes place, dogs' eyes may open while they are sleeping. It is a typical phase of their sleep and is not always a sign of a problem.

Is a dog sleeping with its tongue out normal?

Due to their face structure and relaxed state, some dogs, especially those of brachycephalic breeds, may sleep with their tongues out. Consult a veterinarian if it persists or is coupled with additional symptoms.

Does sleeping with the tongue out pose any health risks for dogs?

Dogs who sleep with their tongues out may experience health concerns like dental troubles, weak muscles, or neurological abnormalities. If you have any questions, you should speak with a veterinarian.

Is sleeping with the tongue out a habit that some dog breeds are more prone to?

Due to their facial form, brachycephalic breeds may be more likely to sleep with their tongues out. However, it can happen to dogs of any species, and there are distinct variants. It doesn't only apply to certain breeds.

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