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Watch How Astronauts Sleep in Space

You've seen how astronauts cry in space, but what about how they sleep?

Chris Hadfield, who currently lives on the International Space Station, explained how he catches some Zs in a zero-gravity environment.

All it requires is putting on a pair of "space jammies," then heading to your individual "sleep pod," which has a sleeping bag tied to the wall inside. Without gravity, there's no need for a pillow or mattress — simply relax, and float.

What do you think of how astronauts sleep in space? Could you sleep in zero G? Tell us in the comments, below.

Screenshot image courtesy of YouTube, canadianspaceagency