What can cause involuntary movements during sleep?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Involuntary movements during sleep are often caused by Periodic Limb Movement Disorder (PLMD), a condition marked by repetitive limb jerks or twitches that typically occur during non-REM sleep, though they can also appear in REM sleep. These movements may disrupt rest for you or a bed partner and can signal underlying sleep or neurological issues.

Because symptoms like nighttime twitching can overlap with other conditions—such as restless legs syndrome, REM sleep behavior disorder, or nocturnal seizures—it's important to get clarity before deciding on next steps. Taking a free, instant, online symptom check can help you understand what may be causing your movements and guide you toward the right care, faster.

Reviewed for medical accuracy: 07/14/2026

Important Next Steps

Learn what causes involuntary movements during sleep Discover if your sleep movements need care Find out if involuntary sleep movements are serious See OTC options for involuntary sleep movements Find a doctor for sleep movement disorders Understand home remedies for involuntary sleep movements Check likely causes of involuntary movements in sleep

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Explanation

Involuntary movements during sleep can be due to a condition called periodic limb movements. These are jerky movements, usually in the legs, that happen while sleeping. According to the studies, these movements often occur during REM sleep, which is a deep sleep stage where dreaming happens.

Causes of Involuntary Movements

Periodic Limb Movements: These are repetitive movements and are a common cause of sleep disturbances. They typically occur in the legs.
Sleep Disorders: Sometimes, these movements are part of other sleep disorders.

Effects

These movements can disrupt sleep and may cause daytime tiredness.

If you're experiencing involuntary movements or other sleep-related symptoms, check your symptoms with a free AI-powered symptom checker to help understand what might be causing them.

(References)

Barone DA. (2025). Periodic limb movements in REM sleep. Sleep medicine, 40188805.
Cavalcante-Silva V, Morelhão PK, de Pires GN, Tempaku PF, D'Almeida V, Tufik S, & Andersen ML. (2025). Prevalence and incidence of periodic limb movements .... Journal of sleep research, 39947233.
Merlino G, & Gigli GL. (2012). Sleep-related movement disorders. Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 22203333.

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