That's not narcolepsy... when you can't fall asleep at night it's called insomnia, and the drowsiness stems from that. Narcolepsy is a neurological disorder which causes people to fall asleep for short periods of time at random points during the day, and may also cause vivid hallucinations during these sleep periods.
Anyways, you can always google some methods to help you fall asleep, and if all else fails you should talk to your doctor, who can reccomend or prescribe some sleep aids.
Gee, isn't it nice to have a know-it-all on hand? Sorry for my annoying-ness.