Sloths love trees so much, they will often keep hanging from them long after they die!
It best describes your lazy friend, a sin from the bible, and the animal that makes Kristin Bell burst out in joyous tears: it's the sloth.
These little guys are cute, especially when they decide that hanging out—literally—is the best comfort in the world. Of course, they keep the chill lifestyle alive, even when they are dead.
When Sloths actually decide to move, it's got to be for a really good reason.
They have a quarter as much muscle tissue as other animals in the similar weight range which means their slow and lazy looking movements aren't because they want to stop and smell the roses—they merely can't move any faster.
A three-toed sloth can usually top out to about 13 feet per minute if it's in immediate danger, and that's considered booking it.
They do everything from the safe branches of trees, hanging from them easily with their curved claws. They eat, sleep and give birth, and will unfortunately even die in the trees, remaining there long after expiration.
I suppose that is exactly where they would want to be anyway, since it's the closest thing to a home they have.