Buy Provigil (Modafinil) online overnight with cod in Idaho and Kansas, USA. Provigil (Modafinil) is a medication that is primarily used to treat sleep disorders such as narcolepsy, shift work sleep disorder, and obstructive sleep apnea. It is known for its wakefulness-promoting properties and is often prescribed to help individuals stay awake during the day. Additionally, Provigil (Modafinil) is sometimes used off-label for cognitive enhancement in individuals who do not have a sleep disorder.