Why Do Cats Sleep So Much? 

What's Normal, What's Not, and When Sleep Signals a Health Concern 

By Dr. Dina Bascharon, DVM Oak Park Animal Hospital - Oak Park, IL

Serving our community since 1972. Where compassion, prevention, and Pawsitive Longevity® come together.

Cats are famous for their love of sleep. Many pet parents are surprised to learn that it is normal for cats to sleep between 12 and 18 hours per day. This behavior is rooted in feline biology, but changes in sleep patterns can sometimes signal underlying health concerns.Understanding what is normal for your individual cat is essential to protecting long-term health and quality of life.

Why Cats Sleep So Much

Natural Hunting Instincts: Cats are natural predators. Even indoor cats retain the instinct to conserve energy between bursts of activity. Sleeping allows cats to preserve energy for hunting, play, and exploration.

Age and Life Stage: Kittens and senior cats tend to sleep more than young adult cats. Kittens sleep to support growth and development, while senior cats sleep more as part of normal aging.

Temperature and Environment: Cats often sleep more in warm, comfortable environments. They may also adjust sleep patterns based on household activity and light cyces.

When Increased Sleep Is a Concern

While sleeping a lot is normal, changes in sleep habits deserve attention. Contact your veterinarian if your cat: 

• Sleeps significantly more or less than usual 
• Becomes difficult to wake 
• Shows decreased interest in food or play 
• Hides more than normal 
• Appears weak or lethargic

These changes may indicate pain, illness, metabolic disease, or stress.

Sleep and Pawsitive Longevity®

From a Pawsitive Longevity® perspective, changes in energy and sleep are early health signals. Cats are experts at masking illness, and subtle changes may be the first indication that something is wrong. Regular wellness exams allow us to track trends over time and intervene early, protecting comfort and longevity.

Our Approach at Oak Park Animal Hospital

Dr. Dina Bascharon evaluates sleep and energy changes by considering life stage, behavior patterns, medical history, and physical examination findings. This comprehensive approach allows us to identify disease early and support healthier aging.

Oak Park Animal Hospital 708-383-5542

From our family to yours since 1972... personal care you can trust.