Koalas are known for loving to sleep a lot – they can spend more than 20 hours per day resting. Even during their awake hours, they are slow and don’t really like to move too much. They eat slowly; they basically do everything slowly.
But why do koalas do this? Mainly, it’s simply because they love sleeping. Also, they require a long sleep in order to digest the food they eat. Since they are herbivores, they don’t take in a lot of calories with their food, so it’s a good idea to conserve the energy. Sleeping for a long time lowers koalas’ metabolism, so they are able to maintain the desired energy levels for a longer time.