Why Do Dogs Sleep So Much?

Dogs are known for their ability to sleep for long periods of time. In fact, some dogs can sleep up to 20 hours a day. Many dog owners wonder why their pets sleep so much. In this blog post, we will explore the reasons why dogs sleep so much.

Reasons Why Dogs Sleep So Much

Evolutionary Adaptation

Dogs are descendants of wolves, who are also known for napping for long periods of time. Wolves sleep for about 14 hours a day. This is because wolves are predators and need to conserve energy for hunting. Dogs have inherited this trait from their wolf ancestors and may sleep for long periods of time, even if they are domesticated.


According to The Spruce Pets, puppies and older dogs tend to rest more than adult dogs. Puppies need more rest to support their growth and development, while older dogs may nap more due to health issues or changes in their activity levels.


Dogs that are on a high-protein diet may rest more. This is because protein contains tryptophan, which is a precursor to serotonin, a neurotransmitter that regulates sleep.

Health Issues

If a dog is sleeping more than usual, it may be a sign of an underlying health issue. Some health issues that can cause excessive sleepiness in dogs include hypothyroidism, diabetes, and depression.

Activity Level

Dogs that are highly active during the day may need more nap to recover. This is especially true for working dogs, such as police dogs and search and rescue dogs, who need to be alert and focused when on the job.


The environment can also play a role in a dog’s sleeping habits. Dogs that are in a noisy or stressful environment may rest more to cope with the stress. On the other hand, dogs in a quiet and comfortable environment may nap less.


In conclusion, dogs snooze so much because they are biologically wired to do so. As descendants of wolves, who are known for sleeping up to 16 hours a day, dogs have inherited this trait. Additionally, dogs have a unique sleep cycle that allows them to quickly fall into a deep rest, which helps them to conserve energy and remain alert during their waking hours. It’s important for dog owners to understand their pet’s rest needs and to provide them with a comfortable, quiet, and safe sleeping environment. By doing so, we can ensure that our furry companions get the rest they need to maintain their health and well-being. So the next time you see your dog dozing off, remember that it’s perfectly natural and necessary for their health and happiness.