Narcolepsy is a sleep disorder that features excessive daytime sleepiness.In a tycpial sleep stages. This is when REM sleep occurs. It takes around 60–90 minutes to reach the stage of REM cycle, a person will first enter the early stage of sleep, then the deeper sleep sleep. For people with narcolepsy, however, REM sleep occurs There are two main types of narcolepsy: type 1 and type 2. within 15 minutes in the sleep cycle and intermittently during the waking hours. It is during REM sleep that vivid dreams and muscle paralysis occur.Type 1 involves sleepiness and cataplexy. Tests will show that the person is almost entirely missing a neurotransmitter known as hypocretin. This may occur after an infection triggers an autoimmune condition.

Modalert 200Mg Tablet is a medicine used for treating extreme sleepiness in patients with sleep issues like narcolepsy. It contains modafinil as an active ingredient.