A sleep condition like narcolepsy may be the cause of unexpectedly falling asleep when seated, particularly if it occurs regularly. A neurological disorder called narcolepsy impairs the brain's capacity to control sleep-wake cycles, leading to unexpected episodes of daytime sleepiness. Even after a full night's sleep, people with this syndrome frequently have excessive daytime drowsiness. A brand of modafinil called Modalert 200 is frequently given to treat this problem by increasing alertness and encouraging wakefulness. For an accurate diagnosis and to learn more about treatment options like Modalert 200, it's crucial to speak with a sleep specialist if you're having these episodes.