Ever wondered how animals sleep?


There are many weird and wonderful ways that animals sleep, here are some interesting animal sleep facts for you.

Giraffes sleep for five minutes at a time, adding up to an average of 30 minutes per day. Giraffes are often hunted by other animals for food so they sleep standing up with one eye open and both ears moving.


Cows like to sleep close to their families, and sleeping arrangements are determined by individuals' rank in the social hierarchy. Any cows that don’t follow the ‘boss’ cow become isolated from the herd.


The lion sleeps a total of 15 to 20 hours per day. They may even sleep for a full 24 hours! Lions sleep in the day and hunt in the darkness of night. This is so that they can catch their prey at their weakest, plus they have the advantage that they can see in the dark.

 Sea Otters

The Sea Otter is known to sleep by floating on their backs on the water’s surface. Sea Otters hold hands tightly while they sleep so that they do not drift away from each other. They can also tangle themselves in kelp or seaweed so as to anchor themselves in one position.


Chickens can sleep with one eye open and one eye closed. Chickens have two brain hemispheres which they are able to control separately. While one eye is closed it is this side of the brain which is in resting while the side with the eye open remains awake and alert for any potential threats.


Jellyfish don’t sleep, they cannot sleep. In order to sleep you need a brain and jellyfish do not have one!


Known to be the shortest sleeping mammal related to their body size. Elephants can stay awake for days on end. In the wild elephants sleep for around 2 hours a day.


Bats sleep upside down in trees, caves, or crevices. Sleeping upside down means they can escape quickly if predator’s approach. Bats are also nocturnal; awake at night, while asleep during the day.

Dolphins sleep and swim at the same time. They can turn off half their brain and close one eye, allowing them to be partly asleep and awake at the same time. Dolphins sleep this way so they can be ready to protect themselves from predators and swim to the surface for air.