Janice used to think her husband's sleepwalking was funny.
He fumbled through the dark, often muttered incoherently, and occasionally walked into walls. But she stopped laughing when he made his way to the garage one night and started the car.
Experts estimate that sleepwalking afflicts between 1% and 15% of the general population. It's more common in children -- especially those between the ages of 3 and 7 -- than in adults. According to the National Sleep Foundation's 2004 Sleep in America Poll,...
False: The average adult needs a total sleep time of seven to nine hours per day. While sleep patterns usually change as we age, the amount of sleep we generally need does not. Older people may sleep less at night due, in part, to frequent night waking, but their need for sleep is no less than that of younger adults.
True: Aside from bothering other people, snoring is not harmful. However, it can be a sign of sleep apnea, a sleep disorder that is associated with significant medical problems such as cardiovascular disease and diabetes. Sleep apnea is characterized by episodes of reduced or no airflow throughout the night. People with sleep apnea may remember waking up frequently during the night gasping for breath.
You can "cheat" on the amount of sleep you get.
False: Sleep experts say that most adults need between seven and nine hours of sleep each night for optimal health. Getting fewer hours of sleep will eventually need to be replenished with additional sleep in the next few nights. Our body does not seem to get used to less sleep than it needs.