Why do Cats Like Boxes?

6. Keeping warm

Another simple reason why cats can't get enough of boxes is simply a matter of temperature. Normally a cat's body temperature will fall between 100.5 to 102.5 degrees, higher than that of humans which means they are comfortable in a higher ambient temperature than their human friends.

Whereas people tend to keep their homes somewhere close to 72 degrees, cats prefer and ambient temperature somewhere between 86 and 97 degrees. A box provides the perfect insulation.