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Home > Cats > Summer & Heat

Cats don't die on one hot day. They suffer through a hundred and fifty warm ones. And they never let you see it.

Sat 16 May 2026 | 09:47 BST · 14,293 readers
By Feline Wellness Today · Editorial
Why the real strain on cats isn't the 35°C day. It's the warm ones in between. And why you almost never notice.
Cat resting on a cool surface in a warm room

Acute heatstroke is the headline every summer. It's the emergency owners rightly fear. But it only affects a small share of cats each summer.

What the others quietly go through doesn't yet have a name among cat owners. In veterinary medicine it does. It's called chronic heat strain: the slow, daily effort a cat's body makes over weeks and months, working against a warmth that never becomes an obvious emergency.

It's the reason that, in a climate where summers keep getting longer and warmer, cats age faster than they should. Why kidney, heart and circulation problems are creeping into the lives of older cats who'd otherwise still be fine. Why 'just normal for her age' gets said in vet practices more often than it should.

It isn't normal.

It's the sum of a hundred and fifty warm days nobody worried about, and nobody saw.

The calculation nobody runs

A cat's thermal comfort zone, 20 to 26 degrees Celsius

Here's a number almost no cat owner knows: 20 to 26 degrees Celsius. That's a cat's comfort zone, the narrow band where the body stays in balance without spending energy to cool itself down. Above it, the effort begins. From around 30°C indoors, it becomes critical for many cats.

Pull up the forecast for the coming week. How many days sit above 26°C? Across most of the UK, several already. And indoors it's often warmer than outside, especially in a top-floor flat or a loft room.

The Met Office records the shift in black and white: heat days per summer have more than doubled since the sixties. But those are just the peaks, the days above 30°C. The real strain comes from the warm days nobody flags.

That isn't 'a few hot days in summer'. That's half the warm season.

On every one of those days, a cat's body works against the warmth. Its circulation runs under higher load. Its kidneys filter harder, and the kidney is the most vulnerable organ a cat has. And it compounds, week by week, summer by summer. Acute heatstroke is what owners are afraid of. Chronic heat strain is what actually costs cats years of life, without anyone seeing it coming.

Why the usual fixes aren't enough

Cat lying flat on a warm floor

Most owners already do something. Blinds down. A fan in the corner. A damp towel now and then. Fresh water in a few different spots. When it gets really hot, they stay in and worry.

All of it is right. It's actually good.

It just kicks in at 32°C.

At 26°C, nobody does anything. Not the owner. Not the neighbour. Not the vet. But at 26°C the cat is already outside her comfort zone. Her body has already started spending energy to cool itself down. And because she doesn't show it, it goes unnoticed.

And there's a second half to the problem: cats sleep and rest sixteen hours a day and more. On the sofa. In the cat bed. On the blanket by the window. All of those surfaces store heat. None of them carries it away.

So the cat spends the whole day trying to give her body heat to a surface that quietly hands it back.

Cats don't sweat. They cool through the floor.

How cats release heat through the belly, inner thighs and paw pads

A cat has almost no sweat glands, only tiny ones in her paw pads. She can't release heat through her coat. Panting, which in a dog is the emergency brake, is already a warning sign in a cat, a sign of serious overheating. Before it comes to that, a cat has only one effective way to shed heat: a cool surface to lie on. The belly, the inner thighs and the paw pads pass heat straight to the surface, exactly where the coat is thin. That's her real cooling system.

That's why, in summer, a cat seeks out the bathroom tiles, the sink, the empty bath, the stone floor in the hall.

When she disappears from the warm living room and you later find her stretched flat on the kitchen tiles, that isn't a quirk. It's an ancient programme trying to find what our modern, softly carpeted, well-heated homes took out of her life: a cool floor.

The simple question is: how do you give it back?

A British brand spent two summers building one answer.

The answer that took two summers to build

Kovah Cooling Mat cat resting

Kovah was set up after the founder's cat slipped into a life-threatening state on a hot summer afternoon, with no warning beforehand. She had simply withdrawn, the way she always did. Three cooling mats bought before it had failed in turn: one leaked within a fortnight, one the cat refused to lie on, the third was clawed through inside ten weeks.

What came out of that has very little in common with the gel mats on the high street. Multiple layers, no gel. A Contact Layer that draws warmth away from the skin. A Pressure-Activated Core that absorbs and spreads it. A Breathable Membrane that lets it release back into the room. No batteries. No fridge. No 'charge it overnight'.

Kovah cooling fabric detail

Because there's no gel inside, nothing can leak. Nothing can puncture and ruin the floor. Even if a determined cat decides to nibble at it or catch it with a claw, there's no liquid to find. The fabric is certified to Oeko-Tex Standard 100, the same standard used for babywear. The cover is machine washable at 30°C. Designed in the UK.

The brand backs the mat to keep working season after season, unusual for the category, and offers a full refund if the cat doesn't take to it within the trial window. The owner returns it and gets the full price back.

Most cats take to the mat within the first few days, once it's on their favourite spot. Whichever cat refuses it, the owner sends it back and gets the full purchase price refunded.

Kovah Cooling Mat multi-layer construction

What the Kovah Cooling Mat is built around:

→ Three-layer cooling structure. No gel, no liquid, nothing to leak.

→ Activates the moment the cat lies down. No power, no fridge, no charge time.

→ Certified to Oeko-Tex Standard 100. Machine washable at 30°C.

→ Built to keep working season after season. A size to fit every cat.

→ 90-day return window. Full refund if the cat refuses the mat.

Voices from practice

Veterinarian in a clinic

For context, we spoke with a vet and an owner who know the issue from different angles.

"Chronic heat strain is a topic that's grown noticeably in my practice over the last five years. With cats I notice it especially, because they're so good at hiding it. What rarely lands with owners is that the strain starts well below what we casually call 'heat'. And the cat never shows it to us."
— Dr Anna Bennett, BVetMed, small animal practice, Leeds

The owner's perspective sounds different, but lands on the same point: the effort of finding a solution that holds up in everyday life and that the cat actually uses.

"We had two mats before. The first one she ignored. The second was done after one summer. With the Kovah she settled onto it herself on day three. She's been there every afternoon since May, instead of hiding away on the bathroom tiles. I get to see her again, instead of having to go looking for her."
Cat owner at home with her cat
— Sarah K., owner of an eleven-year-old British Shorthair, Manchester

Both perspectives land in the same place: what makes the difference here isn't the spectacular fix. It's the everyday one.

A cooling mat that actually works isn't a summer gadget for the three hot days. It's what makes the other half of the warm season easier for the cat. The hundred and fifty warm days when nothing else gets done.

What gives a cat years back isn't the dramatic emergency measures. It's the few everyday tools that keep her in balance for good.

What happens when the floor is cool again

Cat resting calmly on the Kovah Cooling Mat

Owners describe a recurring pattern. The first changes are quiet and arrive within days. The cat finds the mat on her own, comes back to it, stays on it longer, often at her usual resting spot instead of retreating to the cold tiles.

By week one, she's calmer and more settled on hot days. By week two, she sleeps more deeply. By September, what usually builds up doesn't: the quiet, constant stress, a body that never quite comes to rest.

It isn't dramatic. It's the opposite of dramatic. A cat who lies quiet through a warm afternoon and never reaches the state owners normally only step in for.

That's the point. The actual difference lands where nobody is looking: on the hundred and fifty warm days when nothing else gets done, and the cat shows nothing.

Starting now is the advantage

Cat settled on the Kovah Cooling Mat by a sunny window

The Kovah Cooling Mat is available directly from the brand's website.

UK delivery included. 90-day return window.

Owners expecting the first 27°C weekend in the next few weeks should have the mat in place by then, not realise on the day that the order is still in transit.

That's the calculation any owner can run. And the one most are glad they ran by the end of summer.

Order today, so the mat is in place before the next warm spell.

PS: Right now there's a travel-size cooling mat for the carrier and trips thrown in, plus the 'Summer Plan for Your Cat' guide. No extra cost while the bonus lasts.
Comments · 28 people are talking about this
Sophie Harrison
My British Shorthair (9) completely withdraws in summer the moment it gets warm. I only ever notice late that it's too much for her. Has anyone tried this with a fussy cat?
Like· Reply· 4· 39 min
Emma Walker
Yes. Mine is normally super fussy and won't touch anything new. She still lay on it after two days. Finally no more worrying whether she's quietly suffering somewhere.
Like· Reply· 7· 16 min
Charlotte Mills
My vet explained the exact same thing about the 150 warm days. That it isn't the one 32°C day, it's the summer as a whole. And that cats just don't show it. She recommended this. Ordering today.
Like· Reply· 4· 51 min
James Hughes
How long is delivery? Our loft flat is already getting warm and I don't want to find out after the next hot weekend.
Like· Reply· 1· 1 hr
Helen Roberts
3 working days for mine. Comes from the UK. And if your cat doesn't take to it, you send it back.
Like· Reply· 2· 24 min
Andrew Walsh
Our tom is 13 and indoor-only. In summer he just lay on the bathroom tiles and you'd barely see him. We've had the mat 3 weeks. He's back on it in the living room with us. First summer in years I don't feel like I'm leaving him to it.
Like· Reply· 6· 1 hr
Andrea Lawson
THIS is the article I needed last summer. We spent weeks with the fan and damp towel routine, and the whole time that feeling she was suffering in silence and I couldn't see it. Exactly that helplessness. If we'd known two years ago, we'd have spared ourselves three summers.
Like· Reply· 2· 2 hr
Christopher Lang
Ordered two. One for my mum, her Persian has the same issue and struggles for air in summer anyway with the short nose. Finally something that doesn't leak after one summer like the Amazon stuff.
Like· Reply· 3· 1 hr