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Why Your Dog Sleeps With Their Eyes Open


By K9Reproduction.comPublished Feb. 9, 2018

It’s a curious and sometimes unsettling sight—your dog is lying there, seemingly asleep, but their eyes are partially open and unfocused. While this might seem odd or even concerning, it's usually normal. Let’s delve into why dogs might sleep with their eyes open and when it might be a cause for concern.

Understanding Why Dogs Sleep With Their Eyes Open

Your Dog is Not Fully Asleep

One common theory is that your dog may not be fully asleep. In the early stages of sleep, dogs relax deeply but only doze lightly. In this state, they may be relaxed enough to appear asleep but haven’t fully lost consciousness, so their eyes haven’t fully closed. Often, just quietly saying their name is enough to return them to full awareness.

It’s Instinctual for Dogs to Stay Alert While Sleeping

Another theory relates to evolution. In the wild, animals need to maintain some degree of situational awareness even while sleeping. Birds, for instance, can put half of their brain to sleep while the other half remains alert. While our domesticated dogs are far removed from their wild ancestors, they may still retain this instinctual behavior. This partial awareness could help them stay alert to potential dangers.

Your Dog May Be in REM Sleep

During REM (Rapid Eye Movement) sleep, dogs often sleep with their eyes partly open. REM is the stage of sleep where dreams occur, and it’s common to see twitching, barking, or even eye movements during this time. Many people mistake these movements for seizures, but dogs experiencing REM sleep will typically have a relaxed, half-open eye appearance, unlike the rigid, full-eye-open look associated with seizures.

Your Dog May Have an Eye Condition

In some cases, there may be a medical reason why your dog sleeps with their eyes open. Certain eye conditions or eyelid disorders can make it difficult for dogs to fully close their eyes. This is more common in breeds with short, smushed-in faces and big eyes, such as Pugs and Boston Terriers. These dogs often have lids that are too small to cover their eyes completely. If you suspect a medical issue, a visit to the vet is warranted.

Real-World Example: Buddy the Boston Terrier

Buddy, a Boston Terrier, was observed sleeping with his eyes partially open from a young age. His owner initially thought it was due to light sleep, but during a routine vet check-up, it was discovered that Buddy had an eyelid condition making it difficult for him to fully close his eyes. With proper diagnosis and treatment, including the use of lubricating eye drops, Buddy now sleeps more comfortably.

Q&A About Dogs Sleeping With Their Eyes Open

Q: Is it normal for dogs to sleep with their eyes open? A: Yes, it is generally normal for dogs to sleep with their eyes partially open, especially during light sleep or REM sleep stages.

Q: Can dogs dream with their eyes open? A: Yes, dogs can experience dreams during REM sleep, which might cause them to move or twitch while their eyes are partially open.

Q: Should I wake my dog if they are sleeping with their eyes open? A: No, if your dog seems relaxed and peaceful, it’s best to let them sleep. However, if they appear distressed or are having a seizure, gently waking them may be necessary.

FAQs About Dogs Sleeping With Their Eyes Open

Q: What should I do if my dog always sleeps with their eyes open? A: If your dog consistently sleeps with their eyes open, consult your veterinarian to rule out any underlying eye conditions or health issues.

Q: Is it harmful for my dog to sleep with their eyes open? A: Generally, it is not harmful. However, if it is due to an eye condition, the lack of proper eyelid closure can lead to eye dryness or other issues, which should be addressed by a vet.

Q: Can puppies sleep with their eyes open? A: Yes, puppies can also sleep with their eyes open. This is usually due to light sleep stages or REM sleep.

Q: Are certain dog breeds more prone to sleeping with their eyes open? A: Breeds with prominent eyes, like Pugs and Boston Terriers, are more likely to sleep with their eyes open due to their facial structure.

When to Be Concerned

While it's generally normal for dogs to sleep with their eyes open or partly open, there are times when this behavior warrants a trip to the vet:

  • Persistent eye opening: If your dog always sleeps with their eyes open, it could indicate an underlying eye condition.

  • Signs of distress: If your dog appears distressed, is vocalizing in their sleep, or showing signs of discomfort.

  • Changes in behavior: If you notice any significant changes in your dog's sleeping patterns or behavior.

Perspective from a Veterinary Professional

Dr. Sandra C. Mitchell, DVM, DABVP, explains that while most instances of dogs sleeping with their eyes open are harmless, it’s essential for pet owners to be vigilant. “Regular veterinary check-ups can help identify any underlying issues early on,” says Dr. Mitchell. “If your dog shows any signs of discomfort or you have concerns, it’s always best to consult your veterinarian.”

Final Thoughts

Dogs sleeping with their eyes open might look odd, but it’s often just a quirk of their sleep patterns. Understanding the reasons behind this behavior can help you determine when it’s normal and when it might require veterinary attention. With proper care and observation, you can ensure your dog enjoys a healthy and restful sleep.

For more information and resources, visit K9Reproduction.com.


Why Your Dog Sleeps With Their Eyes Open
Why Your Dog Sleeps With Their Eyes Open

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