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Dog Health & Care

Why Is My Dog Sleeping More Than Usual? Vet-Approved Facts and When to Worry

Nicole Cosgrove
By Nicole Cosgrove · Reviewed & fact-checked by Dr. Marta Vidal-AbarcaVet Approved
Dr. Marta Vidal-Abarca
Reviewed & Fact-Checked byDr. Marta Vidal-AbarcaBVSc GPCert Ophthal MRCVS (Veterinarian)
Dr. Marta has over 16 years of veterinary experience, working across the UK and Spain as a remote veterinary consultant and in the clinic. She graduated from Cardenal Herrera-CEU University in Valencia, Spain. She holds two Ophthalmology Certificates, GPCert Ophthal from ESVPS and UAB. She has wide experience in small animal internal medicine and surgery with a soft spot for dogs. Marta is a member of the Royal College of Veterinary Surgeons, and her main fields of interest are ophthalmology and critical care medicine. Dr. Marta loves being able to share the most helpful information with pet parents across the world as one of Pangolia's in-house veterinarians. She wants to provide details that can help in all aspects of pets' lives with their beloved ones. She loves knowing that she can support our readers and communicate about any medical topic that might be relevant to their pet's health and well-being.View authorThe information is current and up-to-date in accordance with the latest veterinarian research. Learn more
Updated on June 17, 2026
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Most dogs sleep throughout the night as well as for much of the day. As humans, we’re used to sleeping only at night when it’s dark outside and staying up all day. Dogs, like us, have a diurnal rhythm, but they tend to sleep also for small periods throughout the day. It may seem like they’re sleeping a lot since many healthy adult dogs sleep around 12 to 14 hours in a day.

So, when is it time to worry? Like other predators, dogs have short sleep-and-wake cycles. The amount of hours they sleep may vary depending on factors such as their age and health. However, sleeping excessively can frequently indicate a health problem that should warrant veterinary attention.

Learn more about a dog’s normal sleep patterns and how to tell if something is wrong.

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Why Dogs Sleep So Much

Many mammals sleep for most of the day, on and off. Dogs aren’t much different. They don’t have homework or chores or smartphones to occupy them, so they sleep when things are calm. Conversely, dogs also wake up and are fully alert in mere seconds.

How much your dog may sleep depends on the following factors:

  • Age: Puppies and senior dogs will sleep more than middle-aged dogs
  • Health: Sick dogs or those recovering from illness will sleep more than healthy dogs

If your dog seems to sleep more than usual or struggles to wake up, it could be a sign of a problem. Some age-related problems and illnesses can manifest with lethargy, such as infectious diseases, neurological problems, canine cognitive dysfunction (doggy dementia), and pain.

Generally, a dog that sleeps for around 12 hours a day isn’t a cause for concern. Pay attention to your dog’s sleep cycles and other behaviors, such as appetite, activity level, and alertness, before worrying about an underlying condition.

Image by: KaryB, Shutterstock

Give Your Pup Something to Do

While we work or go to school, dogs are alone all day. Then, we go to bed at night, and again our dogs are alone with nothing to do. If you think your dog sleeps too much and you have ruled out any health issues with your vet, it may be that it doesn’t have much else to do.

If you want to stave off boredom and give your dog more enrichment during the day, try interventions like puzzle toys. These toys use challenges like hiding a treat and making your dog find it under a cup or inside of a ball. Toys can be simple or complex, so you can start with an easier option and upgrade to a harder one.

You can also give your dog a midday walk if you can take the time from work during your lunch break. If not, hire a dog walker to give your dog a brisk afternoon walk. Or you may want to take your dog in the morning or evening when you’re home to give them some exercise and bonding time.

Image Credit: Daxiao Productions, Shutterstock

When to Seek Veterinary Attention

In most cases, you’ll notice an increase in sleeping with other signs, such as inappetence, lameness, digestive issues, or obvious pain. Still, dogs can be good at hiding their issues, so excessive sleep may be the first indicator that something is wrong.

Here are some things to look out for:

  • Changes in sleep patterns
  • Sleeping when you offer alternatives, like play or food
  • Refusing to play or go for a walk
  • Less eating or drinking
  • Pickier appetite
  • Difficulty waking up
  • Narcolepsy, or falling asleep randomly
  • Waking suddenly, looking scared or upset
  • Weakness, lameness, or limping
  • Struggling to get up
  • An increase in aggression
  • Pacing or drooling
  • Vocalizing

Some of these signs may indicate age-related problems, such as arthritis or canine cognitive dysfunction, while others may indicate other health problems like gastroenteritis, infections, or hypothyroidism, to mention some. Have your vet examine your dog to determine the underlying cause.

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Why Does My Dog Sleep So Much?

Dogs sleep a lot; however, any change in your dog’s sleeping pattern should make you contact your vet and have them thoroughly checked. You can give your dog enrichment through walks, playtime, or puzzle toys if you want to keep them busy during daytime. If you still notice your dog is sleeping a lot and showing other signs of illness like inappetence or weakness, it’s time to see a vet.


Featured Image: Quisquilia, Shutterstock

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Nicole Cosgrove
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