Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

How Do Dogs Fall Asleep So Fast? Vet-Reviewed Canine’s Sleep Cycle

Dachshund and terrier sleeping together

Dogs have a plethora of skills and talents, but their ability to fall asleep in seconds flat is truly jealousy-inducing. How is it that your pup can nod off into slumber the moment their bodies settle in for a nap?

Their unique sleep cycles and lifestyle factors can influence how quickly dogs can fall asleep. Read on to learn more.

Dogster divider_v1_NEW_MAY_24_

How Do Dogs Fall Asleep So Fast?

1. Unique Sleep Cycles

Dogs sleep a lot, but their sleep cycles are different from ours. They don’t typically crawl into bed for the night at 10 pm and stay asleep until 8 a.m. like we do. Instead, their sleep hours are spread throughout the day in shorter intervals, and as such, they naturally spend a shorter amount of time in rapid eye movement (REM) sleep.1

This fragmented sleep pattern may be partly why they’re able to fall asleep in record time. While they may fall asleep fast, they typically sleep much lighter than we do.

10-week old Golden Retriever puppy sleeping
Image Credit: sherwood, Shutterstock

2. An Exhausting Day

Dogs are very active animals, so it only makes sense that by the time they go for a nap, their bodies are exhausted and ready to catch some ZZs. Dogs need to be able to recharge their batteries quickly, so they’ve evolved to fall asleep fast so they can wake up and perform immediately.

Have you ever noticed that your dog is game for pretty much anything at any time of the day? If you ask them if they want to go for a walk at 1 a.m., they’ll be ready and raring to go. This is due to their natural ability to wake up and instantly be prepared to perform.


3. An Unburdened Lifestyle

When we go to sleep at night, we’re burdened with the thoughts of our human egos. We think about what we have to do the next day, the piles of work we have waiting for us at the office, upcoming trips, our health, and other things that weigh heavily on us.

Dogs don’t lie in bed and think about the logistics of life. They don’t worry about how they’ll run the kids to their extracurricular activities while also juggling the demands of their boss and keeping up with the housework.

puppy sleeping at home
Image Credit: Lazy_Bear, Shutterstock

Dogster divider_v2_NEW_MAY_24_

A Dog’s Sleep Pattern

While dogs’ sleep patterns are similar to humans, there are some key differences. Let’s examine the two main canine sleep stages.

Stage One

When they first fall asleep, dogs enter slow-wave sleep (SWS), which is sometimes also called non-rapid eye movement (NREM) sleep. During this phase, electrical brain activity changes as the body slowly tunes into restorative rest, but the muscles are still active.

You’ll know your pup is in SWS when they’re breathing calmly. This is a light sleep, and your pet will wake easily if there are unexpected sounds.

Stage Two

Stage two, also known as rapid eye movement (REM), is a deeper sleep that occurs after the NREM phase and when dogs may be dreaming. You’ll know your pup has entered REM when they’re twitching, whining, or barking lightly. This is a deeper sleep, and it will be harder to wake up your pup while they’re in this stage.

Due to their interrupted sleep pattern, dogs typically only spend around 10% of their sleeping time in REM. By contrast, humans spend 20 to 25% of their sleep in this phase.

Bahamian-potcake-sleeping-on-blanket
Image Credit: Caroline Hendrickson, Shutterstock

Why Do Dogs Sleep So Much?

While all pups need a lot of sleep, this is especially true when they’re puppies. Young pups expend an immeasurable amount of energy growing and exploring their new and exciting world and may sleep up to 20 hours daily until they’re around 3 months old, depending on their breed.

Adult dogs don’t always have quite the same exuberance for exploration, but they’ll still sleep anywhere between 10 and 16 hours per day. Senior dogs, much like their human counterparts, may revert to a puppy-like sleep schedule as they age. Sick and painful dogs may also sleep more than usual.

However, dogs don’t log all their ZZs in one go like we do. They spread their sleep hours throughout the day, napping here and there whenever they have time or see fit. Therefore, dogs make up for receiving less REM sleep and increased interruptions by sleeping more.

Dogster divider_v3_NEW_MAY_24_

Final Thoughts

Dogs can fall asleep faster than you due to their natural sleep cycles, active lifestyle, and unburdened existence. You may toss and turn all night because you’re thinking about paying bills and meeting work deadlines while your pup happily nods off at the drop of a hat.

Try not to be too envious of your dog’s ability to fall asleep quickly, though. While they may drift off into dreamland faster than you, the amount of their REM will be less than yours.


Featured Image Credit: mykeyruna, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Auggie Dog Breed: Info, Pictures, Care Guide & More

The Auggie is also sometimes referred to as an Aussie Corgi and is a mixed breed that crosses the Australian Shepherd and the...

15 Great Off-Leash Dog Parks in Ireland (2025 Guide)

Off-Leash dog parks are a great way to let your dog have some fun. Getting exercise and socializing with other dogs are both...

Can You Register a Dog With a DNA Test? Surprising Facts

Registering your dog with a club like the AKC comes with many benefits, including 30 days of pet insurance coverage, a free vet...

Can a Dog Overdose on CBD Oil? Signs & Precautions

CBD oil can be used on dogs to help with several different health benefits. While there’s yet to be any definitive research on...

More related

Can Dogs Eat Mint? Vet Approved Facts & FAQ

What do you think of when you think of mint? Fresh breath, spruced-up salads, smoothies, and mojitos. But have you ever wondered if...

My Puppy Still Has Worms After Deworming: Our Vet Explains

Puppies and worms are like peanut butter and jelly—not that they taste great but rather that they are commonly seen together. Puppies can...

9 Best Dog Foods for Cavalier King Charles Spaniel in 2025 – Reviews & Top Picks

The Cavalier King Charles Spaniel is a gentle, sweet-natured companion that makes an excellent addition to the family. Unlike some small breeds, the...

How to Clean Your Dachshund’s Ears: 8 Vet-Approved Cleaning Tips

Dachshunds have the most adorable features. They have long bodies, earning them the “hot dog” nickname. They have stubby legs and also long,...

Keep reading

Why Does My Dog Leave Food on the Floor? 7 Vet-Reviewed Reasons

When dogs leave food all over the floor, it can be somewhat perplexing. After all, dogs are supposed to enjoy eating their food, so why are they moving it out of the bowl to various locations around your house or...

dog eating dog food

Can Dogs Have Scallops? Vet-Verified Nutrition Facts & FAQ

Learning that 95% of people consider their pets family members is not all that surprising these days. We open our homes to our dogs, share our vacations with them, and even let them sleep in our beds. We even slip...

Dogster-Can-Dogs-Have-Scallops

Can Dogs Eat Pizza Rolls? Vet-Verified Nutrition Facts & Concerns

Product developer Beatrice Ojakangas found a gold mine when she created pizza rolls in Duluth, Minnesota, in the 1960s; a time where quick-and-easy snacks and meals were becoming increasingly popular. While pizza rolls are undeniably moreish, they aren’t a healthy...

Dogster-Can-Dogs-Eat-Pizza Rolls

We Feed Raw Dog Food Review 2025: Our Expert’s Opinion

Has your dog had digestive issues? Have you often wondered whether his or her kibble could be the culprit? If so, you are not alone. It is something all pet parents go through at some point in time. You may...

Dogster_We Feed Raw Dog Food Review

Which Dog Foods Have Never Been Recalled? 10 Popular Brands

The last thing that you want to do is feed tainted dog food to your dog. One of the best ways to determine if a dog food company might have a recall in the future is to check if they’ve...

close up beagle eating

Can Dogs Eat Sesame Sticks? Vet-Verified Nutrition Facts & Risks

Many of us enjoy the delicious crunch of sesame seeds in our salads or trail mix, and it’s not exactly rare to have those precious puppy dog eyes staring into your soul while begging for just a little bite of...

Can Dogs Eat Sesame Sticks

Can Dogs Eat Strawberries? Vet Approved Facts & FAQ

Strawberries are one of the most cherished summertime fruits because of their healthy properties and sweet flavor. A plump and juicy strawberry is hard to resist, but can dogs eat strawberries? Yes, your dog can enjoy a few strawberries since...

Can Dogs Eat Strawberries

Can Dogs Eat Oatmeal Cookies? Vet-Verified Nutrition Facts & Info

For humans, oatmeal cookies are generally considered a healthier alternative to other cookies because they contain whole-grain oats, which are high in fiber, however, oatmeal cookies will still contain sugar and butter which are not healthy for dogs. Oatmeal cookies...

Dogster-Can-Dogs-Eat-Oatmeal Cookies