Sleep is such a peaceful thing, where you get to rest and relax after a hard day. However, while you might be sleeping, your body is up to some pretty weird stuff. How the body regenerates during sleep is definitely miraculous and fascinating, but that doesn't make it any less bizarre and gross.
We all generally known that what sleep does to your body is helpful and beneficial to your waking self. But sleeping itself is a rather tumultuous process. Your skin begins to fall off, your mouth fills with bacteria, and you even become paralyzed. And these are only the normal things that can happen - the abnormal stuff is positively cringe-worthy! This all might sound impossible, but it happens to you every night, as soon as you begin to drift off to dream land.
What happens when you fall asleep is generally not harmful - and better than the alternative, sleep deprivation - but is still pretty nasty when you take the time to think about it.