Why Do Cats Love Boxes So Much? The Science of "If I Fits, I Sits"

A box is a cat's safe space

Cats are both predators and prey in the wild. They hunt small animals, but bigger animals hunt them. A box solves both problems at once: it's a place to hide from danger and a great spot to watch for something to pounce on.

In other words, your cat isn't just sitting in a box. It's running a very serious security operation. From the box. All day.

Hiding helps cats calm down

When cats feel stressed, they often hide instead of facing the problem head-on. A small 2014 study at an animal shelter in the Netherlands found that newly arrived cats given hiding boxes were less stressed in their first few days and settled in faster. The cats without boxes caught up after about two weeks.

So if your cat disappears into a box when the vacuum comes out, that's basically a coping strategy. Honestly, it's not a bad one.

Boxes are cozy and warm

Cats like it warmer than we do. Research suggests a cat's comfortable temperature range is somewhere around 86 to 97 degrees Fahrenheit, much warmer than most homes. A snug cardboard box helps trap body heat, which may be part of why your cat curls up inside one for hours.

"If I fits, I sits" is real

It's not just boxes. Cats are famous for sitting in laundry baskets, sinks, shoe boxes that are clearly too small and even squares of tape on the floor.

In a small 2021 study, cat owners set out shapes on the floor at home, including an optical illusion that only looked like the outline of a square. Only a handful of cats sat in any shape, but those that did chose the illusion about as often as the real square. So cats may be drawn to anything that even looks like an enclosed space. Very scientific. Very cat.

Should you give your cat a box?

Absolutely. A simple cardboard box is a cheap, easy way to give your cat a safe hiding spot. Remove any tape or staples first, and cut a doorway if you like. Then accept that it will be your cat's favorite thing you've ever bought, even though you didn't buy it.