If you’ve noticed your older dog sleeping more than they used to, you’re not imagining it — and you’re probably right to pay attention. More sleep is a normal part of aging in dogs, but it can also be a sign of something worth addressing. Here’s how to tell the difference.
How Much Sleep Is Normal for a Senior Dog?
Adult dogs typically sleep 12–14 hours a day. Senior dogs — generally considered to be dogs over 7 years old for large breeds, and over 10 for smaller breeds — often sleep 14–18 hours a day. That’s a significant increase, and for many dogs it’s completely normal.
As dogs age, their bodies require more recovery time. Their metabolism slows, their muscles tire more quickly, and the general effort of a day simply takes more out of them. More sleep is often their body’s appropriate response to that reality.
When Extra Sleep Is Something to Watch
The question isn’t just how much your dog is sleeping — it’s how they’re sleeping, and what the rest of their day looks like. Signs that extra sleep might indicate something beyond normal aging include:
- Lethargy that extends to their awake hours — a dog who seems disinterested, dull, or unresponsive even when awake, not just when resting
- Loss of interest in food or water
- Difficulty waking or seeming confused when they do
- Sleeping in unusual places — avoiding their usual bed, or seeking out cold floors which can indicate fever
- Changes alongside other symptoms — weight loss, changes in urination, or visible discomfort
Any of these alongside increased sleep is worth a vet conversation. Conditions like hypothyroidism, anemia, diabetes, heart disease, and cognitive dysfunction can all cause increased sleepiness in older dogs, and most respond well to treatment when caught early.
Pain Is a Hidden Cause of Excessive Sleep
One of the less obvious reasons senior dogs sleep more is pain. A dog dealing with arthritis or joint pain who isn’t getting enough relief may sleep more simply because movement hurts and rest is easier. This kind of sleep isn’t truly restful — they may shift around frequently, whimper softly, or seem uncomfortable even while lying down.
If your senior dog is sleeping more but doesn’t seem truly rested, pain management is worth discussing with your vet. At home, improving where and how they sleep can also make a real difference — a supportive, cushioned surface instead of a thin mat or hard floor, and gentle warmth from a heated pad, can help joints recover more fully overnight.
Cognitive Dysfunction in Senior Dogs
Older dogs can develop a condition similar to dementia in humans, called Canine Cognitive Dysfunction (CCD). One common sign is a disrupted sleep-wake cycle — dogs with CCD often sleep more during the day and are restless or awake at night. If your dog’s sleeping pattern seems reversed or confused rather than simply increased, bring it up with your vet.
What You Can Do at Home
If your vet rules out underlying medical causes and confirms your dog is simply sleeping more as a normal part of aging, there are things you can do to make that rest as beneficial as possible:
- Provide a supportive sleeping surface that relieves pressure on hips, shoulders, and joints
- Add gentle warmth — a heated pad or heated bed helps muscles relax and joints recover overnight
- Keep their sleep area quiet, warm, and away from cold drafts or hard floors
- Maintain a consistent daily routine — regular meal times and short, gentle walks help regulate sleep patterns
- Consider a calming aid for anxious sleepers, especially if your dog is restless at night
More sleep in a senior dog is usually not a crisis — but it’s always worth paying attention to. The dogs who age most comfortably are the ones whose owners notice the small changes and act on them early.