These 5 animals sleep most of the day, and here’s why

Sleep is important for everyone, but some animals take it to a whole new level. While humans usually need around seven to nine hours, certain animals spend most of the day resting. For them, sleep is not just about feeling refreshed. Sleep helps animals save energy, stay safe, and get ready for the next day. Here's a look at some animals who nap the most.
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Disclaimer: The details in this article are based on online sources and ecological studies. Information may differ depending on species and region.

Images: Canva (for representative purposes only)

Koalas sleep a lot. They rest for 18 to 22 hours every day. Their diet mainly consists of eucalyptus leaves, which are low in nutrients. Because of this, they spend most of their time lying in trees. When awake, they eat a lot and sometimes keep leaves in their cheeks to snack on later. Sleeping most of the day is how they survive.

Sloths move very slowly and sleep a lot. They stay in trees most of the time. They eat, move slowly, and rest. In the wild, they sleep about 10 hours. In safe places, they can sleep up to 20 hours. Their slow and steady life goes hand in hand with long naps.

Little brown bats are nocturnal. They are awake at night hunting for insects. The rest of the time, they sleep and can sleep up to 20 hours a day. In winter, they sleep for many weeks to save energy. Sleeping helps them stay strong for the night when they are active.

Opossums are mostly active at night and sleep around 18 hours a day. They find quiet spots such as tree hollows or abandoned nests during the day. Contrary to myths, they do not hang from their tails while sleeping. Resting in safe spots helps them stay hidden from predators.
Image: Canva (for representative purposes only)

Even predators like pythons sleep a lot. They can sleep up to 18 hours a day. They hunt at night and rest during the day in secure places. Long periods of rest help them digest meals and stay ready for the next hunt. Sleep is an important part of their survival.


Watching these animals shows that sleep is more than just rest. It is a key part of survival. Humans cannot sleep for 20 hours, but these animals show how nature uses rest to save energy, stay safe, and keep going.