How Do Animals Sleep? [Infographic]

how animals sleepHumans spend one third of their lives catching some zzzzzz. That may seem like a lot of time, but a koala requires more than double the daily amount of sleep we do. Domestic cats commonly spend half of each day asleep, which is about as obvious as scientific facts come. This visual comparison of the number of hours certain animals sleep and how they do so offers a small insight into some of the complex questions scientists are asking about sleep.

In 2011, neurophysiologist Niels Rattenborg joined Carl Zimmer and a distinguished group of scientists at the World Science Festival for “Mind After Midnight,” a conversation about what leading researchers around the world have been learning about how humans and animals sleep and why this research matters. For instance, humans commonly dream while they are asleep, but what else the brain up to during the middle of the night? Do animals dream, too?

Spoiler alert: Rats dream, says MIT neuroscientist Matthew Wilson. This is how he knows.

By: and

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15 comments
Claire Naylor Callister Merritt
Claire Naylor Callister Merritt

I am somewhere between a kinkajou and a cat. I am certainly not a human and working more towards a koala as the years go by

Aijaz Rajput Bhatti
Aijaz Rajput Bhatti

i had not seen to cat as sleeping but here it shows that cat sleeps more than human is it right ?

Attilio Grandani
Attilio Grandani

Giraffes take so long to lay down that they barely have time to sleep, as they then take a long time to get up again\U0001f606

Oscar Reyes
Oscar Reyes

On the contrary!, Rachel... If we were giraffes, we would accumulate nearly twenty years of conscious life on a normal lifespan of eighty years... Almost the worth of an extra generation..

Jason Weeks
Jason Weeks

I have rarely ever slept 8 hours in my life,I usually only sleep for around 4 hours.

Mark O'Connor
Mark O'Connor

How can politicians look themselves in the mirror?

Ella Grubaugh
Ella Grubaugh

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Ania Lian
Ania Lian

omg :) Loved that talk in 2015? or 2014 - was great to learn that birds dont sleep or at least dont need to land t sleep

Graham Frankling
Graham Frankling

With one eye open as there are an awful lot of wicked humans about.

Trackbacks

  1. […] World Science Festival released an infographic last week detailing how much some of our favorite animals — from giraffes to koalas — sleep compared to us. Scroll down for a visual comparison […]

  2. […] World Science Festival released an infographic last week detailing how much some of our favorite animals — from giraffes to koalas — sleep compared to us. Scroll down for a visual comparison […]

  3. […] World Science Festival released an infographic last week detailing how much some of our favorite animals — from giraffes to koalas — sleep compared to us. Scroll down for a visual comparison of the […]

  4. […] World Science Festival released an infographic last week detailing how much some of our favorite animals — from giraffes to koalas — sleep compared to us. Scroll down for a visual comparison […]