Why Does My Dog Sleep So Much?

5 min read
Why Does My Dog Sleep So Much?

Most dogs sleep between 10 and 14 hours a day as part of a healthy routine. While a human sleeping up to 14 hours a day might raise alarm bells, for our canine friends, spending roughly half their lives in slumber is completely natural.

Dogs have vastly different sleep cycles from ours, and their sleep requirements vary depending on age, size, daily activity and diet. Understanding why your dog sleeps so much can help you distinguish between healthy rest and potential underlying health and lifestyle issues.

Key Points

  • Different dog breeds sleep for varying lengths of time.
  • Common reasons why dogs sleep so much include their life stage, size, daily routine, and diet.
  • Dogs also sleep for long periods due to a lack of stimulation of activity.
  • Large dog breeds have bigger bodies that require more energy and more sleep to power properly.
  • Feed your dog a balanced diet to ensure they have the energy for the day.

Main Reasons Your Dog Sleeps So Much

Age and Life Stage

  • Puppies: Since they are growing rapidly, their bodies require more energy to develop healthy bones, muscles and immune systems. It is perfectly normal for a puppy to sleep up to 18 to 20 hours a day.
  • Senior Dogs: As dogs age, their metabolism slows down, joint stiffness may set in, and they tire more easily from daily exertion. Senior dogs often spend 16 to 18 hours per day resting to conserve energy and comfort their ageing joints.

Breed and Size Differences

Larger dog breeds like Great Danes or Mastiffs tend to sleep considerably more than smaller breeds. Large-bodied dogs use more energy to move around and carry their weight, often requiring 14 to 18 hours of sleep per day. Conversely, smaller breeds and working dogs may remain alert for longer, stretching short naps across the afternoon instead.

Energy Output and Daily Routine

A dog’s daily environment plays a big role in how much they sleep. Dogs adapt their sleeping habits around human activity:

  • Working Dogs: Dogs with jobs like search-and-rescue or herding stay awake longer because they receive consistent physical and mental stimulation.
  • Pet Dogs: Household pets spend roughly 50% of their day sleeping, 30% resting or lounging awake, and only 20% actively moving around.

Diet and Digestive Energy

Digestive health impacts a dog’s energy levels. Digesting low-quality, heavy or complex foods requires a substantial amount of internal energy, leaving a dog feeling sluggish and tired after meals. Feeding a wholesome, complete diet, like proper dry food, ensures your dog gets clean, sustained energy without straining their digestive tract. Wet food can be a great source of energy, too, depending on what your dog prefers.

Rest is vital for tissue repair, immune support and mental processing. However, a sudden surge in your dog’s sleeping hours can signal that something in their routine needs adjusting.

Excessive lethargy may usually stem from:

  • Dietary Inefficiencies: A diet lacking proper nutrient density.
  • Lack of Mental Stimulation: Boredom often manifests as daytime sleepiness.
  • Weight Concerns: Carrying extra weight puts additional strain on joints and organs, leading to fatigue.
  • Underlying Health Conditions: Sudden changes in sleep patterns can indicate pain, arthritis, infection or metabolic issues.

At Burns Pet, we believe health and wellbeing start from the inside out. A balanced lifestyle featuring daily mental engagement, moderate exercise and high-quality nutrition keeps your dog bright and healthy.

How To Support Healthy Sleep Habits in Dogs

If you want to ensure your dog enjoys restorative sleep while staying active during waking hours, consider these simple habits:

  • Provide a Quiet Sleep Area: Give your dog a comfortable, draught-free bed in a corner where they feel safe and undisturbed.
  • Keep Exercise Consistent: Tailor daily walks and playtime to your dog’s age, breed and physical capacity to prevent overtiredness and boredom.
  • Engage their mind: Use puzzle toys, scent games or basic training to provide mental stimulation during their waking hours.
  • Feed a Balanced Diet: Choose a digestible, natural diet designed to support steady energy levels throughout the day.
  • Monitor Changes: Keep track of your dog’s baseline sleep routines so you can quickly spot any sudden shifts in behaviour.

When Should I Speak to a Vet?

While sleeping up to 14 hours a day (or more for puppies and seniors) is completely normal, sudden behavioural shifts warrant attention.

You should consult your vet if you notice your dog showing any of these symptoms:

  • Sudden lethargy or unwillingness to stand up for walks and meals.
  • Loss of appetite or changes in drinking habits
  • Disorientation, confusion or restlessness when awake
  • Whining, stiffness or visible discomfort when lying down or getting up

FAQs

Should I let my dog sleep as much as they want?

Yes, in most cases, you should let your dog sleep as much as they want. Sleep is an essential process for body repair, immune health and mental wellbeing. Unless your vet has prescribed a strict schedule for medication or feeding, avoid waking a sleeping dog unnecessarily. If you notice a sudden dramatic increase in total sleep hours accompanied by lethargy, consult your vet practice for guidance.

Are dogs bored when they sleep all day?

Sometimes, yes. While much of a dog’s sleep is physical rest, dogs will often nap simply because there is nothing else happening in their environment. If a dog lacks mental and physical stimulation, they may sleep out of boredom. Adding daily walks, interactive toys, training sessions and sniffing games into their routine helps keep them active and engaged while awake.

What dog breed sleeps the most?

Bigger breeds and low-energy breeds tend to sleep the most. Breeds such as Great Danes, Mastiffs, St. Bernards, Greyhounds and Basset Hounds often sleep between 14 to 18 hours a day. Their large body mass requires extra recovery time, and many of these breeds have naturally low-energy temperaments.

How do dogs sleep differently to people?

Unlike humans, who typically experience one long block of sleep at night (monophasic sleep), dogs are polyphasic sleepers. This means they divide their sleep into multiple shorter blocks throughout the 24-hour cycle.

When humans fall asleep, they spend around 25% of their sleep cycle in REM (rapid Eye Movement) sleep, or the phase where memory consolidation and dreaming occur. Dogs, on the other hand. spend only 10% of their total rest time in REM sleep. Because their sleep is more fragmented, they need more total sleep time throughout the day to fully recharge.