Sleeping in a tree isn’t necessarily an easy thing to do. It requires lots of balance, physical skill and determination. That’s why most people or animals don’t really do it.
And then… Enter cats. The way cats sleep is already pretty mind-boggling, so it only makes sense that they are one of the few animals to accomplish this “sport” of sleeping in trees. In short, they’re great at it (and apparently they do it often) and we have the silliest pictures to prove it.