Which of the following sleep disorders involves recurrent attacks of an irrepressible need to sleep, lapses into sleep, or naps occurring within the same day?

Question

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Narcolepsy is characterized by recurrent attacks of an irrepressible need to sleep, lapses into sleep, or naps occurring within the same day. This can be accompanied by cataplexy, which involves a sudden loss of muscle tone and is often triggered by strong emotions like laughter or excitement. Primary insomnia is difficulty falling or staying asleep, nightmare disorder involves frequent and distressing dreams, and primary hypersomnia is excessive daytime sleepiness without the presence of cataplexy.

Which of the Following Sleep Disorders Involves Recurrent Attacks of an Irrepressible