Jerk is an involuntary muscle spasm that occurs as a person is drifting off to sleep, It is defined as an involuntary twitch that tends to happen just as you are about to step into dreamland.
Sleep starts: Why your body 'hiccups' as you fall asleep
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5 strange sleep behaviors
When you're almost asleep and then jerk back awake #shorts
Hypnic jerk: Why Do I Twitch When I Sleep?
Hypnic jerks – Why do you feel a sudden jerk when you fall asleep
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Premiere: The Circle Jerks Recall Their Hardcore Origins in New Documentary 'My Career as a Jerk, jerks
Premiere: The Circle Jerks Recall Their Hardcore Origins in New Documentary 'My Career as a Jerk, jerks
Magnificent Jerk Podcast on Spotify, jerks
Hypnic jerks: what causes twitching in sleep — Calm Blog
Hypnic Jerk: Causes behind Twitch Sensation While Falling Asleep
Your Latest Buzzword is Hypnic Jerks. - Healthier Sleep Magazine