While everyone aims for a good night's sleep, you may experience strange symptoms during your slumber, some of which may hint at a more serious condition.

Hypnic jerks (sleep starts) cause a sudden, uncontrollable muscle twitch affecting your whole body or arms and legs. The twitch occurs as you fall asleep.

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Sleep myoclonus is involuntary muscle twitching movements that may occur in children or adults as they fall asleep or during sleep. Learn about the causes and how it’s treated.

What is sleep myoclonus? The scientific name for this phenomenon is sleep myoclonus (also known as hypnic myoclonus), and happens when you shift from one sleep phase into another. During these sleep ...

During these sleep transitions, the body muscles can have spasms called hypnagogic jerks (or hypnic jerks), and are more likely to happen when you’re falling asleep, or during the light stage of sleep ...

Myoclonus is sudden muscle movement, like a twitch or jerk, that you can’t control. Learn more about its types, symptoms, causes, diagnosis, and treatment at WebMD.

Why does this happen? This phenomenon of involuntary muscle movement during sleep is known as sleep myoclonus, or hypnic myoclonus. It occurs as you transition between different stages of sleep.

Sleep myoclonus involves involuntary movement or muscle spasms during sleep or when falling asleep. Learn more here.

Myoclonus is a rapid, involuntary muscle jerk. Examples of myoclonus in healthy individuals include the twitching of an arm or leg when someone is falling asleep, hiccups, and sudden muscle jerks or ...