Sleep is life

These adorable koalas are known for their love of sleeping in trees and they can also sleep uninterrupted for up to 18 hours. Due to their smell of eucalyptus and musk, they keep away the fleas and other insects from their fur. The koala is a marsupial mammal, which means it is related to the kangaroo and the wombat, but it is called ‘bear’ because of its look.