Slakoth lolls around and sleeps for more than twenty hours a day, which can makes those around it drowsy. Since it does not move very much, it does not need much food and only eats three leaves each day. Its heart only beats once a minute. It is capable of regaining lost energy through use of its former signature move, Slack Off. It makes its nest in forests, and keeps the same one during its entire life. However, it can travel far by swimming in rivers.
Slakoth is a brown, quadruped Pokémon with sloth-like qualities. It has coarse, shaggy fur with two dark brown stripes on its back. There is a scruff of fur on top of its head, and it has a large, pig-like pink nose, pink eyelids, and dark rings around its eyes. It has long, lanky arms, but shorter legs. Each paw has two sharp claws, and there are pink paw pads on the back feet. Its underbelly and read are also pink.