Treatment usually involves weight reduction and the use of a mechanical device that provides high pressure air through a mask during sleep. Narcolepsy, or sleeping sickness, causes people to fall asleep about anytime or anywhere. They then awaken refreshed, only to become sleepy again within an hour or so. These sleep episodes may last anywhere from a few seconds to more than an hour. The exact cause of narcolepsy is unknown.
Treatment usually involves regular naps along with drugs to control drowsiness and sleep attacks.
Regarding exercise, only a few studies have addressed its role in minimizing excessive daytime sleepiness, and the findings are inconclusive. However, physical activity may promote nighttime sleep and therefore enhance daytime alertness. You should discuss all this with your husband's physician. You may also want to contact a sleep clinic. This is an important issue.