Sleep paralysis

If you’ve ever had an experience where you’re falling asleep at night and suddenly your mind is awake but your body is asleep and you can’t move, fear not, the condition is known as sleep paralysis. (The same thing can also happen during the middle of a sleep cycle, where your mind wakes up while your body is asleep.) For some reason it’s featured in a story here in Business Insider (India). There’s also an article about it here on Wikipedia.