Can sleep disorders affect daytime alertness?

Yes. Sleep disorders can have a significant effect on how alert a person feels during the day. Narcolepsy can affect normal sleep-wake patterns, while shift work sleep disorder can make it difficult to stay awake during scheduled working hours. Sleep apnea can also contribute to daytime sleepiness when nighttime rest is repeatedly disrupted.

Treatment varies according to the condition. Provigil 100 mg contains modafinil and may be prescribed by a healthcare professional to help improve wakefulness in adults with certain sleep disorders.