Why Do Cats Like Boxes?

Is it about security?

Primarily, yes. Enclosed spaces give cats a defensible position where threats can only come from one direction. In the wild, this is a survival advantage. In your living room, it translates to a cardboard box being one of the safest-feeling spots your cat can find. A study by researchers at Utrecht University in the Netherlands found that shelter cats given hiding boxes adapted to their new environment significantly faster and showed lower stress indicators than cats without boxes. The sense of enclosure genuinely calms them.

Do boxes keep them warm?

Yes. Cardboard is an excellent insulator, and a box-sized space traps body heat efficiently. Cats prefer ambient temperatures between 86 and 97 degrees Fahrenheit (30 to 36 Celsius), which is higher than most homes. A snug box helps bridge the gap between room temperature and their comfort zone, which is another reason they gravitate toward small, enclosed spaces.

Is it a hunting thing?

Partly. Boxes provide the perfect ambush position. A cat inside a box can observe their surroundings without being seen, which activates their stalking instincts. You've probably seen your cat peer out from a box and then pounce on a passing foot or toy. That's the predatory brain at work, using the box as a hide from which to launch an attack. It's play, instinct, and entertainment all wrapped into one cardboard package.