a teacup! Awww.
Also, you can mess with a cat in a box far more than you could when it’s not inside one, so it makes sense that a cat thinks it’s impervious to harm while stowed away in its mini fortress.
Another theory is that cats like to run hot — they try to maintain a body temperature between 86 and 97 degrees Fahrenheit — and smushing themselves in boxes helps them maintain heat. That’s also why you’ll often find your cat posted up on a radiator or a charging laptop.
“When a cat is warm, the cat feels relaxed,” Wilbourn says.