Do all animals sleep? Does a dolphin need to catch a quick cat nap before swimming laps? Is it true that horses can sleep standing up? And what about opossums and bats… can they really doze upside-down?
The long and short of it is that scientists aren’t entirely sure. In truth, we don’t actually know how many types of animals there are in the world, let alone how all of them sleep. Though experts believe there are between 1 to 2 million species of animals on earth, some say that upwards of 86% of land species and 91% of all sea species have yet to be discovered.
So… We Have No Idea if Non-Human Animals Sleep?
Well, not exactly. According to the National Sleep Foundation, several species of animals slumber in much the same way humans do, though their sleep patterns and habits are as diverse as the creatures themselves.
Scientists have found that one type of animal may go through totally different stages of sleep than another. Insects and fish, for example, never experience REM sleep, though most birds and all mammals do every night. Additionally, the amount of time these critters snooze can vary wildly. While sea otters and parrots need up to 11 hours of shut eye to feel well-rested, blue whales can get by just fine with two, and giraffes are able to get all the energy they need from a single, 30-minute nap.
Compelling stuff, right? To learn more about how the various members of the Animal Kingdom catch their respective Zzz’s, take a peek at our infographic below. It’s chock-full of tantalizing facts, weird tidbits, and surprising stats that should shed some light on the species-unifying subject of sleep.
As you can see, we have a lot more in common with our animal brethren than you might at first think. While a pig may not have the option of cuddling up on a plush memory foam bed, they still like to get the same eight hours of sleep that us humans do. And interestingly enough, orangutans have been shown to actually make their own mattresses out of cushiony leaves and twigs, which sounds like a pretty industrious (and cost-effective!) skill to us.
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Logan is the content director of Sleepopolis, which means he not only reviews new mattresses every week, but also curates all the comparisons, best of pages, and video guides on the site. He takes a straightforward, honest approach to his reviews and endeavors to give viewers an objective look at each new product he tries out. Logan has perfected his method by personally testing over 200 different mattresses, so he’s not only able to discern the overall vibe of a specific bed, but to contextualize its feel within the bed-in-a-box market as a whole.