Understanding why cat sleeping more than usual is something every pet biting-owner-suddenly/">owner benefits from knowing early on. If you've noticed your cat sleeping more than usual, the direct answer is that adult cats typically sleep 12–16 hours daily, but a sudden increase beyond this baseline often signals an underlying issue. This could range from normal aging and weather changes to medical conditions like hyperthyroidism, diabetes, or arthritis. A cat sleeping 18–20 hours or more, especially if accompanied by lethargy, appetite changes, or hiding, warrants a veterinary check within 1–2 weeks.
the right choice: If your cat is sleeping more than usual, first rule out medical causes by tracking sleep for 5 days. Cats average 12–16 hours daily, but a sudden increase to 18–20 hours with reduced activity or appetite changes requires a vet visit within 1–2 weeks. Common non emergency reasons include aging (cats
Quick Answer: Why is my cat sleeping more than usual?
If your cat is sleeping more than usual, first rule out medical causes by tracking sleep for 5 days. Cats average 12–16 hours daily, but a sudden increase to 18–20 hours with reduced activity or appetite changes requires a vet visit within 1–2 weeks. Common non emergency reasons include aging (cats over 10 years), weather changes, or boredom. Use a daily log to compare against your cat's individual baseline before concluding it's abnormal.
For a complete guide on this topic, see the Cat Behavior Guide.
What is normal cat sleep versus excessive sleep?
Adult cats naturally sleep 12–16 hours per day, with kittens and seniors sleeping up to 20 hours. This is evolutionarily normal—cats conserve energy for hunting, even if they're indoor pets. A cat sleeping more than usual becomes a concern when the increase is sudden and sustained over 3–5 days.
For many homes, the right why cat sleeping more than usual choice is the one that stays reliable under ordinary daily conditions.
Normal sleep includes periods of deep sleep (REM) and light dozing. Excessive sleep means your cat is consistently sleeping 18+ hours, showing little interest in play, food, or interaction. Track this with a simple daily log—note sleep start and end times for 5 days.
A well matched why cat sleeping more than usual option should support the pet clearly without making the routine harder to maintain.
Pro Tip: Use a pet camera or activity monitor to track sleep patterns objectively. Many cats sleep more when owners are away, so automated tracking gives accurate data for your vet.
Context matters: a cat that sleeps 20 hours after a long play session is normal, but the same duration daily without stimulation is not. Compare to your cat's individual baseline, not general averages.
Most owners get better long term results when why cat sleeping more than usual is judged through routine use rather than a single product claim.
What medical conditions cause increased sleep in cats?
Hyperthyroidism and diabetes
Hyperthyroidism speeds metabolism, causing cats to sleep more as their body burns energy faster. Look for increased appetite with weight loss, vomiting, or a racing heart. Diabetes presents similar lethargy but with excessive thirst and urination. Both require blood tests for diagnosis.
Arthritis and chronic pain
Osteoarthritis affects 60–research suggests 90% of cats over 12 years old, according to veterinary studies. Cats hide pain by sleeping more. Signs include stiffness after rest, reluctance to jump, or litter box accidents. Pain management can significantly improve activity within 2–4 weeks.
Anemia and kidney disease
Anemia reduces oxygen delivery, causing profound lethargy. Check your cat's gums—pale or white gums (instead of pink) indicate anemia. Kidney disease, common in older cats, also causes increased sleep with increased thirst and weight loss. Both need immediate veterinary attention.
Pro Tip: Gently press on your cat's gums with your finger. The color should return to pink within 2 seconds. A slow return (3+ seconds) or pale gums warrants an emergency vet visit.
Other medical causes include infections (upper respiratory, urinary tract), cancer, or neurological issues. Any cat sleeping more than usual for 5+ consecutive days should see a vet, especially if over 7 years old.
How can I tell if my cat's sleep is due to boredom or depression?
The practical side of why cat sleeping more than usual comes down to small daily decisions that add up over weeks.
Boredom induced sleep is common in indoor cats without enrichment. If your cat sleeps more but eats, drinks, and uses the litter box normally, try increasing playtime to at least 30 minutes daily in 10-minute sessions. Cats that perk up with interactive toys (wand toys, puzzle feeders) are likely bored, not sick.
Depression in cats shows as sleeping more, hiding, reduced grooming, and loss of interest in favorite activities. This can follow a move, new pet, or loss of a companion. Environmental enrichment—cat trees, window perches, and scheduled play—often improves mood within 2–3 weeks.
Compare behavior: a bored cat will engage when you initiate play. A depressed or sick cat remains uninterested even with preferred toys. If your cat refuses treats or toys for 3+ days, consult a vet to rule out medical causes first.
What environmental factors can make a cat sleep more?
Weather and seasonal changes
Cats sleep 2–4 hours more during colder months or heat waves. Their body temperature regulation relies on sleep to conserve energy. This is normal if your cat otherwise eats, plays, and interacts normally. Monitor for 1–2 weeks before concluding it's abnormal.
Diet and feeding schedule
High carbohydrate diets can cause energy crashes, leading to more sleep. Cats are obligate carnivores—they need protein-rich, low carb food. Switch to a wet food diet with at least research suggests 40% protein (dry matter basis) to stabilize energy levels within 1–2 weeks.
Pro Tip: Feed your cat 3–4 small meals daily on a schedule, not free-feeding. Scheduled meals mimic natural hunting patterns and reduce lethargy from blood sugar spikes.
Age and life stage
Kittens (under 1 year) sleep 18–20 hours for growth. Adult cats (1–7 years) average 12–16 hours. Seniors (7+ years) often sleep 16–20 hours due to reduced energy and joint pain. A senior cat sleeping more than usual may still be normal, but a sudden increase from 14 to 18 hours daily needs checking.
How does sleep quality differ from sleep quantity in cats?
Sleep quality matters as much as total hours. A cat sleeping 14 hours but waking frequently, twitching excessively, or changing positions often may have poor sleep quality. This can indicate pain, anxiety, or an uncomfortable sleeping environment. Compare to a cat sleeping 16 hours with deep, restful sleep—the latter is healthier.
Signs of poor sleep quality include restlessness, vocalizing during sleep, or waking at minor noises. Provide a quiet, dark sleeping area away from household traffic. Use a heated cat bed for seniors with joint pain, as warmth improves sleep depth within 1–2 weeks. If poor sleep quality persists, a vet check for pain or neurological issues is warranted.
Can breed or personality affect how much a cat sleeps?
Yes, breed and individual personality influence baseline sleep. High energy breeds like Bengals, Abyssinians, and Siamese typically sleep 12–14 hours—less than the average. Laid back breeds like Persians, Ragdolls, and British Shorthairs may naturally sleep 16–18 hours. Knowing your cat's breed tendencies helps distinguish normal variation from a problem.
Personality also plays a role: confident, outgoing cats often sleep less than timid or anxious cats. A shy cat sleeping 18 hours daily may be normal for its temperament. However, any sudden increase of 3–4 hours above your cat's established pattern—regardless of breed—requires investigation. Track your cat's individual baseline over 2 weeks to spot meaningful changes.
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How to address excessive sleep in cats: a step by step plan
Step 1: Track sleep for 5 days
Log sleep start/end times, activity levels, appetite, water intake, and litter box use. Note any changes in behavior, vocalization, or hiding. This data is critical for your vet to distinguish normal variation from a problem.
Step 2: Rule out medical causes
Schedule a vet visit within 1–2 weeks if sleep exceeds 18 hours daily or is accompanied by appetite changes, weight loss, vomiting, diarrhea, or hiding. Request blood work (CBC, chemistry panel, thyroid) and urinalysis to check for common conditions.
Step 3: Increase environmental enrichment
Add 2–3 new toys, a cat tree near a window, and puzzle feeders. Dedicate 30 minutes daily to interactive play. Use vertical space (shelves, perches) to encourage movement. Many cats respond within 1–2 weeks.
Step 4: Adjust diet and feeding schedule
When owners focus specifically on why cat sleeping more than usual, they tend to see more consistent results over time.
Switch to wet food with high protein and low carbs. Feed 3–4 small meals daily. Make sure fresh water is always available. Consider adding omega-3 fatty acids (fish oil) for joint health if your cat is over 7 years old.
Pro Tip: Try a food puzzle or treat dispensing toy at each meal. This mimics hunting behavior and can increase activity by 20–research suggests 30% within 2 weeks, according to veterinary behaviorists.
Step 5: Monitor and adjust after 2–4 weeks
If sleep returns to normal (12–16 hours for adults) and your cat is more active, continue the routine. If no improvement after 4 weeks, return to the vet for advanced diagnostics (imaging, ultrasound).
When should I take my cat to the vet for sleeping too much?
Take your cat to the vet immediately if excessive sleep is accompanied by: pale gums, difficulty breathing, vomiting, diarrhea, refusal to eat or drink for 24 hours, or inability to stand. These are emergency signs. Schedule a non emergency vet visit within 1 week if your cat sleeps 18+ hours daily for 5+ days with any appetite or behavior change.
Veterinarians recommend annual checkups for cats under 7 years and twice yearly for seniors. A cat sleeping more than usual is often the first sign of manageable conditions like hyperthyroidism or arthritis. Early detection improves treatment outcomes within 2–4 weeks.
Frequently Asked Questions
Is it normal for my cat to sleep 20 hours a day?
For kittens under 1 year and seniors over 10 years, 20 hours can be normal. For adult cats (1–7 years), 20 hours is excessive and warrants a vet check if sustained for 5+ days.
Can weather changes cause my cat to sleep more?
Yes, cats sleep 2–4 hours more during cold weather or heat waves. This is normal if your cat still eats, plays, and interacts normally. Monitor for 1–2 weeks before concluding it's abnormal.
What does it mean if my cat sleeps more but still eats normally?
Normal eating with excessive sleep often points to boredom, depression, or mild arthritis. Try increasing playtime to 30 minutes daily. If no improvement in 2 weeks, see your vet.
How can I tell if my cat is sick or just lazy?
A sick cat shows multiple changes: appetite loss, weight change, vomiting, diarrhea, hiding, or poor grooming. A lazy cat eats well, uses the litter box normally, and engages when you initiate play.
Do older cats naturally sleep more?
Yes, cats over 7 years sleep 16–20 hours daily due to reduced energy and joint pain. A sudden increase from 14 to 18 hours needs checking, but gradual increases are normal.
Can diet affect how much my cat sleeps?
Yes, high carbohydrate diets cause energy crashes and more sleep. Switch to wet food with at least research suggests 40% protein and low carbs. Improvement in energy often occurs within 1–2 weeks.
Should I wake my cat up if it's sleeping too much?
No, let your cat sleep. Instead, schedule interactive play sessions at consistent times daily. Waking a sleeping cat can cause stress and doesn't address the underlying cause.
What tests will the vet run for a cat sleeping too much?
Standard tests include blood work (CBC, chemistry panel, thyroid), urinalysis, and blood pressure check. For seniors, your vet may also recommend imaging (X-rays, ultrasound) to check for arthritis or organ issues.
For trusted guidance on feline health and nutrition, the ASPCA provides expert cat care resources reviewed by veterinary professionals. For health related questions,
For broader reference and guidance, petmd.com provides useful context on pet health and care decisions.
For more on this topic, see our guide to why cat attacking feet suddenly.