We Obsess Over Food and Exercise. We Ignore Sleep.
Ask any dog parent about their dog's diet and they can tell you the brand, the protein source, the feeding schedule, and probably the calorie count. Ask about their dog's exercise routine and they'll describe walks, play, and activities in detail. Ask about their dog's sleep and you'll get a blank stare followed by "I don't know, he sleeps a lot?"
Sleep is the most overlooked component of dog wellness. And it matters enormously, especially for aging dogs.
How Much Dogs Actually Sleep
Dogs sleep significantly more than humans. Here's what's normal:
- Puppies: 18 to 20 hours per day (yes, really)
- Adult dogs: 12 to 14 hours per day
- Senior dogs: 14 to 18 hours per day
This includes overnight sleep plus naps throughout the day. If those numbers seem high, consider that your dog is probably sleeping more than you think. Those periods where they're lying quietly with their eyes closed? That's sleep.
What Happens During Dog Sleep
Sleep isn't just rest. It's active biological maintenance:
- Brain waste clearance. The glymphatic system, which clears metabolic waste products from the brain, is most active during sleep. These waste products include beta amyloid, the same protein that accumulates in canine cognitive dysfunction and human Alzheimer's. Good sleep literally helps clean the brain.
- Memory consolidation. Dogs process and store learned information during sleep. The training session you did today gets consolidated into long term memory tonight. Sleep deprived dogs learn more slowly.
- Tissue repair. Growth hormone release peaks during deep sleep, supporting tissue repair, muscle recovery, and immune function.
- Immune system maintenance. Adequate sleep supports immune surveillance and response. Sleep deprived animals (and humans) have measurably reduced immune function.
- Inflammation regulation. Chronic sleep disruption increases systemic inflammation, which worsens joint disease, accelerates cognitive decline, and impairs overall health.
Signs of Poor Sleep Quality
Since your dog can't tell you they slept badly, watch for these indicators:
- Frequent position changes during the night
- Pacing, whimpering, or vocalizing at night
- Excessive daytime sleepiness (more than normal for their age)
- Difficulty settling at bedtime
- Waking much earlier than usual
- Panting during rest (may indicate pain or anxiety)
- Reduced REM sleep (you can observe this; dogs in REM sleep twitch, paddle their feet, and may vocalize softly; less REM activity than usual is a potential concern)
Common Sleep Disruptors
Pain
The number one sleep disruptor in senior dogs. When a dog is lying still, there's nothing to distract from discomfort. Joints that felt manageable during daytime activity become impossible to ignore at night. If your dog is restless at night, pain should be the first thing you investigate with your vet.
Cognitive Dysfunction
CDS disrupts circadian rhythm, causing reversed sleep wake cycles (sleeping more during the day, restless at night) and sundowning behavior.
Environmental Factors
Noise, light, temperature, and surface comfort all affect sleep quality. A dog sleeping on a thin bed on a cold hard floor next to a window where headlights sweep across the ceiling is not getting restorative sleep.
Anxiety
Separation anxiety, noise anxiety, and generalized anxiety all impair sleep quality. An anxious dog remains in a heightened state of alertness that prevents deep, restorative sleep.
Medical Conditions
Urinary issues (needing to go out frequently), respiratory conditions (snoring, sleep apnea in brachycephalic breeds), and hormonal imbalances (Cushing's disease, hypothyroidism) can all disrupt sleep.
Optimizing Your Dog's Sleep
The Bed
This matters more than most people realize. A good dog bed should:
- Be made of memory foam or similar supportive material, at least 4 inches thick for medium to large dogs
- Be large enough for your dog to stretch out fully in every direction
- Have bolster sides (many dogs prefer to rest their head on a raised edge)
- Have a washable cover (for hygiene and comfort)
- Be placed in a quiet, draft free location
The Environment
- Temperature: Most dogs sleep best at 65 to 72 degrees Fahrenheit. Older dogs may need slightly warmer. Provide blankets for dogs who get cold.
- Light: Darkness promotes melatonin production. If your dog's sleeping area is near windows, consider blackout curtains. Nightlights in pathways (not in the sleeping area) for nighttime navigation.
- Sound: White noise or a fan masks disruptive sounds (traffic, wildlife, neighbors) and provides consistent ambient sound. This is especially helpful for anxious dogs.
The Routine
A consistent bedtime routine tells your dog's brain "it's time to wind down." What the routine includes matters less than that it's consistent. Typical elements:
- Last bathroom trip at the same time nightly
- Lights dimming gradually
- Calming activity (gentle petting, LickiMat, quiet time together)
- Moving to the sleeping area at the same time
Pain Management
If your senior dog is on pain medication, discuss the timing with your vet. For many NSAIDs, giving the dose with the evening meal ensures peak effectiveness during the overnight hours when pain disrupts sleep most. This simple timing adjustment can significantly improve sleep quality.
Supplements for Sleep Support
Melatonin (at vet recommended doses) can help dogs with disrupted circadian rhythms. L theanine and certain herbal preparations (chamomile, valerian) have mild calming effects, though evidence in dogs is limited. Supporting overall health with appropriate nutrition and supplements (including cellular health support through NAD+ precursors) contributes to the physiological conditions that enable good sleep.
When to See Your Vet About Sleep
Schedule a vet visit if you notice:
- Sudden change in sleep patterns
- Nighttime pacing or vocalization that's new
- Excessive daytime sleepiness beyond what's normal for your dog's age
- Snoring that's new or significantly worse (especially in brachycephalic breeds)
- Frequent nighttime urination
- Signs of pain during sleep (whimpering, guarding, reluctance to lie in certain positions)
Sleep Is Health
Good sleep isn't a luxury. It's a biological necessity that supports every other aspect of your dog's health: joint repair, cognitive function, immune defense, emotional regulation, and metabolic health. Investing in your dog's sleep quality is investing in their overall wellbeing.
Tonight, take a look at where and how your dog sleeps. Is the bed supportive? Is the environment quiet and dark? Is there a consistent routine? Small optimizations in sleep environment and habits can yield significant improvements in your dog's daytime health and quality of life.