These are some of the animals of the world ranked by how long they sleep. Have you ever wondered how long an OWL sleeps? Or what about a BAT? Watch this video to find out!<br /><br /><br />DISCLAIMER:<br />This probability comparison / comparison video is made based on community discussions and relevant sources, numbers and facts listed might not be up to date, valid or in any specific order.<br /><br /><br />
