30 Dec 2025

Disgusting Things Your Body Does While You Sleep - To Keep You Alive

CDE: You think you’re just resting when you close your eyes? Think again. The second you drift off, your body turns into a biological factory of horrors. From washing your brain with spinal fluid to feeding millions of microscopic bugs on your pillow, your body is working overtime in the grossest ways possible.

In this video, we break down the weird, slimy, and terrifying biological processes that happen every single night. You’ll learn why you jerk awake feeling like you fell off a cliff, why your pillow gets heavier over time, and the disturbing truth about "sleep sand."

It’s gross, it’s weird, but it’s keeping you alive. Sweet dreams.

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