🐶 Why Does My Dog Sleep with Their Eyes Open? A Comprehensive Guide for 2025 💤

By Dr Duncan Houston BVSc

It's not uncommon for dog owners to notice their furry friends sleeping with their eyes partially open. While it might seem unusual or even concerning, this behavior is often normal. Let's delve into the reasons behind this phenomenon and understand when it might warrant a visit to the vet.

🔍 Common Reasons Dogs Sleep with Their Eyes Open

1. Light Sleep Stages

During the initial stages of sleep, dogs may not fully close their eyes. In this light sleep phase, they are relaxed but still somewhat alert to their surroundings. A gentle call of their name can quickly rouse them from this state.

2. Evolutionary Instincts

In the wild, staying alert is crucial for survival. Some animals, like birds, can sleep with one eye open to remain vigilant. Dogs may have retained a version of this trait, allowing them to rest while still being aware of potential threats.

3. REM Sleep

Rapid Eye Movement (REM) sleep is the stage where dreaming occurs. During REM sleep, dogs might exhibit twitching, vocalizations, and eye movements. Their eyes may remain partially open, leading to the appearance of sleeping with open eyes.

4. Visible Third Eyelid

Dogs have a third eyelid, known as the nictitating membrane, which can become visible during sleep. This membrane provides additional eye protection and can give the impression that the dog's eyes are open when they're actually asleep.

⚠️ When to Consult a Veterinarian

While sleeping with eyes open is typically harmless, certain signs may indicate underlying health issues:

• Persistent Eye Openness: If your dog always sleeps with their eyes open, it could be due to anatomical issues, especially in breeds with prominent eyes like Pugs or Boston Terriers.
• Signs of Narcolepsy: Sudden sleep episodes during activities like eating or playing may suggest narcolepsy, a condition that requires veterinary attention.
• Seizure Activity: If your dog exhibits stiff limbs, unresponsiveness, or unusual movements during sleep, it might be a seizure rather than normal REM activity.
• Eye Irritation: Redness, discharge, or swelling in the eyes, especially if your dog is pawing at them, should be evaluated by a vet.

🛡️ Ensuring Your Dog's Eye Health

To keep your dog's eyes healthy:

• Provide a comfortable and safe sleeping environment.
• Regularly check their eyes for signs of irritation or infection.
• Schedule routine veterinary check-ups to monitor overall health.

📱 Leveraging Technology for Pet Health

Modern tools can assist in managing your dog's health effectively:

• Ask A Vet App: Access expert veterinary advice and schedule consultations conveniently.
• Woopf: Utilize training resources tailored to your dog's breed and behavior.
• Purrz: Monitor your dog's activity levels and set reminders for health check-ups and medication schedules.

🎯 Conclusion

Observing your dog sleeping with their eyes open can be intriguing. In most cases, it's a normal behavior linked to their sleep cycles and instincts. However, staying vigilant and noting any accompanying symptoms ensures your dog's well-being. When in doubt, always consult with a veterinarian.

For personalized guidance and support, visit AskAVet.com and download the Ask A Vet app today! 🐾📲