How Many Hours Do Shih Tzu Sleep a Day? Shocking Facts

If you’ve ever glanced over at your Shih Tzu and thought, “Are you really still sleeping?”, you’re not alone.

So, how many hours do Shih Tzu sleep a day? A healthy adult Shih Tzu typically sleeps between 12 and 14 hours per day, combining nighttime rest with several daytime naps, while puppies can clock up to 20 hours and seniors often reach 14 to 16 hours.

That probably sounds like a lot. Honestly, it surprised me too the first time I tracked it.

But Shih Tzus are champion nappers. It’s just part of who they are.

The thing is, knowing the number is only half the story. What really matters is whether your Shih Tzu’s sleep patterns are healthy or hiding something worth paying attention to.

A bored dog naps differently than a sick one. A puppy in a growth spurt sleeps differently than a senior with stiff joints.

Here at Dog Fluffy, I’ve spent years unpacking the quirks of fluffy breeds like Shih Tzus. Sleep is honestly one of the things owners worry about most.

How Many Hours Do Shih Tzu Sleep a Day?

Let’s dig in to what’s truly normal by age, what can cause sleep to shift, when extra naps should make you pause, and how to set up a home routine that helps your dog rest better.

Key Takeaways

• Adult Shih Tzus sleep 12 to 14 hours daily, while puppies and seniors need considerably more rest.
• Changes in sleep habits can stem from boredom, heat, stress, or breed-specific breathing traits, not just illness.
• Tracking sleep alongside appetite and behavior is the simplest way to spot a real health concern early.

What’s Normal by Age

Shih Tzu sleep needs change a lot as they age. Puppies spend most of their day asleep.

Adults settle into a rhythm of naps plus nighttime rest. Seniors gradually add more hours back on as they slow down.

Puppy Sleep Needs and Growth Spurts

Shih Tzu puppies can sleep up to 20 hours a day. That sounds wild, but their little bodies are busy building muscle and processing every new thing.

If your pup crashes hard after a short play session, that’s honestly expected. Growth spurts can make them even sleepier for a few days at a time.

At around 4 weeks, puppies typically log 16 to 20 hours. That range stays high until about one year old.

Don’t wake a sleeping puppy unless something seems off. That rest is pure fuel for them.

Adult Rest Time and Daily Naps

Once your Shih Tzu hits adulthood (roughly 1 to 10 years old), expect about 12 to 14 hours of total sleep per day. That’s usually 8 to 9 hours overnight and a couple naps during the day.

My own fluffy snoozer tends to nap after meals and in the early afternoon. Two or three naps? Totally normal.

If your adult Shih Tzu is regularly going beyond 16 hours, keep an eye on that.

Senior Changes and Slower Recovery

Senior Shih Tzus, generally 10 years and older, often sleep 14 to 16 hours a day. Some even push closer to 19 hours, depending on health and mobility.

Their bodies recover more slowly from walks, play, and even mental activity. Longer naps become the norm.

It’s important to notice the difference between gradual, age-related shifts and sudden jumps in sleep. A slow drift upward is typical, but a sharp jump in a week or two means you should call your vet.

Why Your Shih Tzu May Sleep More or Less

Breed, environment, and daily habits all shape how long your Shih Tzu sleeps. Some things you can control, others you just have to roll with when you live with a brachycephalic fluff ball.

Activity Level, Boredom, and Mental Stimulation

A Shih Tzu that doesn’t get enough exercise or mental engagement will often sleep out of pure boredom. It’s not real tiredness—just nothing better to do.

If you spent the whole day on the couch with nothing to watch, you’d probably doze off too. Short walks, puzzle toys, and even a quick training session make a real difference.

I’ve seen Shih Tzus drop from 16 hours of sleep to a healthy 13 just by adding one extra walk and a 10-minute game. Dogs need mental and physical stimulation to keep their sleep cycle balanced.

Breed Traits, Heat, and Breathing Comfort

Shih Tzus have flat faces, and that means breathing takes a bit more effort, especially when it’s warm or humid. When it’s hot, your Shih Tzu may sleep more simply because breathing comfortably wears them out faster.

This breed genuinely loves lounging, too. They were bred as companion dogs and resting nearby is just in their DNA.

Keep rooms cool and air moving during the warmer months. You’ll probably notice your dog is more active and naps less when it’s cooler.

Stress, Routine Changes, and Sleep Quality

Moved recently? New baby in the house? Even just moving the furniture can throw off a Shih Tzu’s sleep patterns.

Dogs thrive on routine, and disruptions often show up as either more sleep or really restless, broken sleep.

Anxiety and depression can affect dogs too, leading to longer stretches of sleep that aren’t actually restful. Watch for signs like whimpering during sleep, reluctance to get up, or clinginess when awake. Those are clues the extra snoozing isn’t just laziness.

When Extra Sleep Is a Red Flag

Not every long nap deserves panic. But some sleep changes really do signal something’s up.

Knowing the difference can save you a lot of worry—and sometimes catch a health issue early.

Signs Sleep Is Healthy vs. Concerning

Healthy Shih Tzu sleep looks relaxed. Your dog stretches out, breathes easy, wakes up alert, and is ready for food or a walk within a few minutes. That’s what you want to see.

Concerning sleep looks different. If your Shih Tzu seems hard to wake up, acts groggy or confused after naps, or just seems “off” while awake, that’s worth noting.

A dog sleeping the normal amount but waking up energized is very different from one sleeping the same hours but still acting exhausted.

Symptoms That Call for a Vet Visit

Here are the red flags I’d take seriously:

• Sudden increase in sleep (2+ extra hours daily without an obvious reason)
• Loss of appetite alongside more sleep
• Weight gain or weight loss that you can’t explain
• Limping, stiffness, or reluctance to move after resting
• Excessive panting, coughing, or labored breathing during sleep

Conditions like hypothyroidism, heart disease, and diabetes can all make a Shih Tzu sleep more than usual.

If any of these symptoms show up together, book a vet appointment. Sooner is always better than later.

How to Track Sleep, Appetite, and Behavior Changes

You don’t need fancy gadgets. A simple log on your phone works just fine.

I keep three columns: sleep estimate, appetite (normal/low/skipped), and general mood or energy level.

Track it for a week or two. Patterns become obvious fast.

If your Shih Tzu’s sleep creeps up while appetite dips and energy fades, bring that log to your vet. It gives them real data instead of just “they seem sleepier.”

Dog Fluffy’s wellness resources can help you build this kind of tracking habit into your daily routine.

How to Support Better Rest at Home

Good sleep starts with a good setup. A few small changes to your Shih Tzu’s daily life can really improve the quality and consistency of their rest.

Build a Simple Sleep-Friendly Routine

Dogs love predictability. Try to keep feeding, walking, and bedtime at roughly the same times each day.

Consistent schedules help regulate your Shih Tzu’s internal clock and reduce restless nights.

A quick evening walk, then a calm wind-down period before bed, works wonders. Skip the high-energy play right before sleep.

Create a Calm, Comfortable Sleeping Space

Your Shih Tzu’s sleep spot should be:

• Quiet and away from foot traffic
• Cool but not drafty
• Dark or dimly lit at night
• Cushioned with a bed that supports their joints

A dedicated sleep spot gives your dog a sense of security. Some Shih Tzus like enclosed beds or crates with a blanket draped over the top.

Others just sprawl out on an open bed. Watch what your dog seems to prefer and go with it.

Use Dog Fluffy’s Training and Wellness Approach Daily

At Dog Fluffy, I lean into routines that actually work in real life. That means short training sessions to tire your Shih Tzu’s brain, plus age-appropriate walks to burn off energy.

A balanced diet helps keep their energy steady without any sugar crashes. It sounds basic, but these things really do matter for your dog’s sleep.

A dog who’s mentally and physically satisfied usually naps deeper and sleeps through the night with less drama.

Frequently Asked Questions