The night I found her in the sink, I sat down on the edge of the tub and typed
"why does my cat sleep in the sink when it's hot" into my phone.
Page after page of the same recycled article. Fresh water. Close the curtains. Brush
her regularly. Thank you, internet.
Then, deep in an old cat forum, I hit a thread where someone had asked almost
exactly my question — and underneath it, a long reply from a woman who'd been
raising long-haired cats for thirty years.
I read it twice. Then I read it out loud to the cat in the sink.
Here's what it said, as faithfully as I can retell it — and I've since checked all of it
against the boring, reputable veterinary pages. It holds.
A cat's cooling system is nothing like yours.
You cool through your skin. You sweat almost everywhere, moving air evaporates
it, heat leaves your body. That's why a fan feels incredible to you — moving air is
your entire strategy.
Your cat can't do that.
Cats sweat mainly through their paw pads. A few square inches, total.
They don't cool by panting, either — that's a dog's system, not a cat's.
They cool a little by grooming — laying down saliva and letting it evaporate off
the coat.
And more than anything on a hot day, they cool by contact.
That was the sentence that got me. Contact.
When a cat is warm, her best remaining move is to press the parts of her body
with the least fur — the belly, the paw pads — against something cooler than she
is, and let the heat drain out through the touch.
Not air. Touch.
A cat's belly runs warm and wears thin fur. It is, functionally, her radiator. And a
radiator only works when it's pressed against something cold.