Sleep deprivation does not cause narcolepsy, although it might worsen existing symptoms. Narcolepsy, a neurological condition, causes brain sleep-wake cycle abnormalities due to genetic and environmental factors. Narcolepsy is thought to be caused by an autoimmune reaction that attacks hypocretin-producing cells, which regulate alertness and REM sleep. Modalert 200mg, which contains modafinil, is regularly given to treat narcolepsy's symptoms, including daytime sleepiness. Narcolepsy patients can stay awake and productive with modafinil, which affects brain neurotransmitters. While lack of sleep does not cause narcolepsy, irregular sleep patterns and poor sleep hygiene might increase symptoms. Patients with narcolepsy must prioritize appropriate sleep habits, follow a consistent sleep schedule, and collaborate with doctors to create individualized treatment plans.