How much sleep do narcoleptics need? Narcoleptics typically require 7 to 9 hours of sleep at night, but since their sleep cycles are disturbed, they frequently feel excessively sleepy during the day. Taking short naps throughout the day might help control symptoms. In addition to lifestyle modifications such as maintaining regular sleep cycles and avoiding large meals just before work or study, doctors may prescribe drugs like Modvigil 200 (modafinil) to increase alertness and reduce daytime sleepiness. https://www.smartfinil.net/product/modvigil-200/