Why Is My Cat Sleeping So Much in the Summer?

by Grace Briggs

If your cat seems to have turned into a full-time napper lately—sprawled out on the floor, sunbathing in a patch of light, or snoozing under the couch—you’re not alone. Many cat parents notice that their feline friends sleep even more during the hot summer months.

But is it normal? Is your cat just enjoying the lazy vibes of the season, or could something else be going on?

Let’s break it down. Here’s what you need to know about why cats sleep so much in the summer, when to worry, and how to help them stay comfortable, safe, and happy.

First of All—Cats Sleep a Lot All Year Round

Before we blame the weather, it’s worth noting: cats are natural sleepers.

  • Adult cats typically sleep 12–16 hours a day

  • Senior cats and kittens may sleep up to 20 hours

  • Cats are crepuscular, meaning they’re most active at dawn and dusk

So if your cat seems to sleep all day and zoom around at 4 a.m.—that’s actually hardwired into their biology.

Why Do Cats Sleep Even More in the Summer?

Summer heat can turn even the most playful cat into a loaf. Here’s why:

1. Heat Makes Them Tired

Just like us, cats feel sluggish in hot weather. Their bodies naturally conserve energy when it’s warm to avoid overheating. You may notice:

  • Less running around

  • More lying on cool surfaces

  • Stretching out rather than curling up

This is a normal, heat-related slowdown, not usually a cause for concern.

2. Sunlight Affects Sleep Cycles

Longer daylight hours can subtly shift your cat’s sleep patterns. Cats are sensitive to natural light, and the extended brightness may encourage them to nap more during the day and be active in the cooler twilight hours.

3. They’re Finding Ways to Stay Cool

Have you noticed your cat sleeping on the bathroom tile, the kitchen floor, or even the bathtub? Cats instinctively seek cool, shaded, or breezy places to rest. Sleeping is an efficient way to minimise heat exposure and energy use.

Pro Tip: Create cosy summer nap zones by placing cooling mats, breathable beds, or elevated loungers in shaded areas of your home.

Henry Wag Pet Cool Mat £7.99

When Should You Worry?

While extra napping is typically normal in hot weather, some changes are worth watching. Contact your vet if you notice:

  • Sudden changes in sleep habits

  • Lethargy (not just sleepy, but unresponsive or weak)

  • Refusal to eat or drink

  • Panting (cats rarely pant—this can be a sign of overheating)

  • Excessive hiding or signs of pain

These symptoms could indicate heat exhaustion, illness, or discomfort and shouldn’t be ignored.

How to Keep Your Cat Comfortable in the Heat

Here are a few easy ways to support your summer sleeper:

Offer Cool Napping Spots:

  • Place beds in shaded areas or near fans

  • Try elevated or mesh-style beds to improve airflow

  • Use cooling mats or gel pads

Keep Them Hydrated:

  • Offer fresh water in multiple spots

  • Try pet fountains to encourage more drinking

  • Mix a little wet food or hydrating broth into meals

KittyRade Prebiotic Drink For Cats Essential Hydration 250ml £6.35 and Oralade GI Oral Rehydration Fluid Support Drink For Pets £9.69

Brush Regularly:

  • Brushing removes loose fur and helps your cat regulate temperature more efficiently—especially for long-haired breeds

Virbac Enzymatic Toothpaste Kit For Dogs & Cats Poultry Flavour £15.39 and Select Dental Care Toothbrush & Toothpaste Set For Cats & Dogs £10.79

Limit Active Play During Peak Heat:

  • Engage in short play sessions during cooler hours (morning or evening)

  • Swap high-energy toys for gentler enrichment options like puzzle feeders

Summer Cat Comfort Essentials

Looking to help your cat stay cool and cosy? Check out some of our summer faves:

  • Cooling Gel Mats – No electricity needed, perfect for floors or beds

  • Cat Water Fountains – Keep hydration flowing with filtered, fresh water

  • Mesh Window Perches – Let your cat lounge in the breeze and watch the world

  • Grooming Brushes – Reduce shedding and keep fur sleek

Ancol Ergo Soft Cat Brush £7.49 and Ancol Ergo Universal Slicker Medium £7.79

Final Thoughts

So, why is your cat sleeping so much in the summer? Most likely, they’re just doing what cats do best—listening to their bodies, conserving energy, and staying cool. As long as your cat is eating, drinking, and showing signs of normal behaviour, their extra naps are nothing to worry about.

That said, a little support can go a long way. Creating a cool, comfy space and encouraging hydration helps ensure your feline friend has the best summer ever—while snoozing in style.

Back to News