You know your dog’s normal rhythm. When they start snoozing through their favorite walk time or barely lift their head for a treat, it’s natural to worry. Dogs sleep a lot , adult dogs average 12 to 14 hours a day, and puppies and seniors can clock up to 18 or 20. But a sudden increase in sleep, especially if it comes with other changes, deserves a closer look. Let’s break down the most common reasons your dog might be sleeping more than usual, and what you can do about it.
1. Age and Life Stage: Puppies, Seniors, and Breeds That Need More Rest
Age is the biggest factor in how much a dog sleeps. Puppies sleep a ton because their bodies and brains are developing rapidly. Senior dogs often sleep more as their metabolism slows and joints get stiff. Large breeds like Cane Corsos tend to sleep more than high-energy herding breeds. If you have a Cane Corso, you might notice they are natural couch potatoes between bursts of activity. For a breed that grows so large, proper support during rest matters. If your older dog seems extra tired, check their bed , a supportive orthopedic surface can make a real difference. Some breeds, like Australian Shepherds, are built for stamina and may sleep less when healthy, so a sudden increase in sleep for them is more noticeable.
2. Boredom and Lack of Mental Stimulation
Sometimes the simplest explanation is the right one: your dog is bored. Dogs who don’t get enough physical exercise or mental enrichment will often just sleep to pass the time. This is especially common in smart, working breeds. An Australian Shepherd left alone all day with nothing to do will likely nap out of sheer understimulation. A great fix is to introduce puzzle toys for Australian Shepherds or any breed that needs a job. A 15-minute puzzle session can be more tiring than a 30-minute walk. If your dog seems lethargic but perks up when you grab a toy or the leash, boredom is likely the culprit.
“A tired dog is a happy dog, but a bored dog is a sleepy dog.”
3. Diet and Nutrition: Are They Getting the Right Fuel?
What your dog eats directly affects their energy levels. A diet that is too low in quality protein or essential fats can leave them feeling sluggish. Puppies, especially of active breeds, need high-quality food to support growth. For example, best dog food for Australian Shepherd puppies is formulated with the right balance of DHA and protein for brain and bone development. If you’ve recently switched foods or your dog is eating less, that could explain the extra sleep. Also, consider how they eat. If your dog is a fast eater, they might not be digesting properly, which can lead to lethargy. Using dog bowls for Cane Corsos that reduce neck strain and slow down gulping can improve digestion and energy levels.
4. Weather and Seasonal Changes
Just like us, dogs are affected by the weather. On hot, humid days, many dogs will sleep more to conserve energy and avoid overheating. In winter, shorter days and less sunlight can trigger a mild form of seasonal lethargy in some dogs. This is usually temporary and resolves when the weather shifts. If your dog is sleeping more but still eats, drinks, and is happy when awake, the season is a likely factor. Make sure they have a cool, quiet place to rest in summer and a warm, draft-free bed in winter.
Did you know that dogs dream just like humans? Puppies and senior dogs actually dream more than adult dogs. If your dog is twitching or softly barking in their sleep, they are in REM sleep, which is a healthy part of their rest cycle.
5. Underlying Health Issues: When to Pay Attention
While many causes are harmless, increased sleep can be a sign of something medical. Conditions like hypothyroidism, anemia, diabetes, heart disease, or infections can cause lethargy. If your dog’s extra sleep is accompanied by other symptoms , like weight gain or loss, increased thirst, coughing, vomiting, diarrhea, limping, or a change in appetite , it’s time for a vet visit. Also, if your dog seems difficult to wake, or is sleeping in a different position than usual (like with their head down), that can be a red flag. Pain from arthritis or dental issues can also make a dog sleep more to avoid discomfort. Always trust your gut. If something feels off, a checkup can give you peace of mind.
6. Emotional Upset: Stress, Grief, or Big Changes
Dogs are emotional creatures. A move to a new home, the loss of a companion (human or animal), or a change in your work schedule can cause a dog to become withdrawn and sleep more. This is similar to depression in humans. They may lose interest in play or food. The best remedy is to maintain a consistent routine, offer extra gentle attention, and give them time to adjust. If the behavior persists for more than a couple of weeks, talk to your vet or a certified behaviorist. Sometimes, a new Cane Corso or another dog can help if your dog is lonely, but only if the household is ready for another pet.
Most of the time, a few extra hours of sleep is nothing to worry about. But by paying attention to the whole picture , age, diet, activity, and mood , you can be a great detective for your dog’s health. When in doubt, a quick call to your vet is always the best next step.
