The inability to move and cry out in sleep may be a form of episodic sleep disorder. The disease is a chronic sleep disorder of uncertain cause, occurring mostly between the ages of 10 and 30, with no significant difference in incidence between men and women. Patients mainly present with irresistible transient sleep episodes that may occur during the daytime, often causing the patient to fall, sleep paralysis, or hallucinations during sleep. The above symptoms may be a manifestation of sleep paralysis, which may be due to the fact that the patient may experience transient generalized muscle weakness during sleep, such as when he or she has just fallen asleep or woken up, but the patient’s consciousness is preserved. The patient may be unable to move or speak, and most patients may experience fear, terror or even a feeling of near death, which usually lasts from a few seconds to a few minutes. There is no specific treatment available mainly symptomatic treatment, which can be applied to modafinil. Tricyclic antidepressants, such as protriptyline, promethazine and fluoxetine, can also be used.