If Your Body Suddenly Jerks while Falling Asleep, this Is what It Means

According to Live Science, a hypnagogic jerk is an involuntary muscle spasm which happens as one is falling asleep. It has gotten the name because it has to do with the hypnagogic state, i.e. the transitional period between being awake and being asleep. They are commonly known as sleep starts or hypnic jerks. Let us learn more about why this happens…