Artvigil 150 is a wakefulness-promoting medicine used for people with sleep disorders such sleep apnea, narcolepsy, or extreme sleepiness brought on by working irregular hours. Armodafinil is effective in treating narcolepsy and other sleep disorders, including sleep apnea, which cause excessive daytime sleepiness. You need a prescription to get it, and you should only take it as prescribed. Tablets of armodafinil are recommended for adults with obstructive sleep apnea and excessive daytime sleepiness. No dose of armodafinil tested failed to increase wakefulness.