Cats are cute. Cats in boxes are even cuter. Cats are aware of this fact, and they make the most of it. Here are some notes from an unknown cat on 'cute sleeping in boxes' to make the owner "awwh".
Every cat from the smallest house-moggie to the mightiest lion sleeps most of the day. In fact, cats spend about 85 percent of their time sleeping or resting. Forty percent of a cat's day is spent in regular sleep, 15 percent in deep, or REM, sleep, and 30 percent resting or sitting. Newborn kittens sleep even more than adult cats. A young kitten sleeps pretty much all day and night, a pattern that may have developed because in the wild, a sleeping (and therefore silent) kitten is a safe kitten.