Which is why zoologist and sloth expert Lucy Cooke has released a book teeming with cute pictures and interesting facts about these lovable creatures.
The snaps were taken at the world's only sloth orphanage in Costa Rica and talks about how they are the perfect snuggling animals, as they love a good hug. Aww!
Check out these super sweet photographs:
Copyright: © Lucy Cooke 2013
The Power of Sloth publishes on Thursday 10 April 2014, by Hachette Childrens, HB, 9781445127903, priced £7.99.
Which is your favourite picture? Tell us below, as the best comment from across the website each week wins £50!