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Getting a good night's sleep is incredibly important, but that means different things for different species—especially if you're a critter who needs a good day's sleep instead. The mattress experts over at Sleepopolis put together this incredibly cool clock-shaped chart that lays out the sleeping habits of 20 different animals, including humans.

It turns out, we're pretty boring sleepers compared to a lot of these. Especially tall animals that can't get up and down easily, like horses and giraffes. They sleep on their feet for short periods of time, only laying down for a serious snooze. So do dolphins, albeit for longer periods, and the long-distance frigate birds sleep in the air! Here are some closeups on Sleepopolis's animal factoids:

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