Sloth's are some of the sleepiest creatures in the entire world.

Sometimes they sleep 20 hours a day!

Even when they are awake, Sloths barely move. They move so little, algae sometimes grows on them!

They don't sleep in beds, though. They find comfy spots in trees.

Their trees can be found in the tropical forests of Central and South America.

Even though Sloths look a little like monkeys, they are actually related to armadillos and anteaters.

There are two species of them. One has two claws and the other has three! Both have round heads, sad eyes, tiny ears, and stubby tails.

They also have a two extra neck vertebrae that allow them to turn their neck almost all the way around!