The Toll of Sleep Loss in America

Elise G. hits the alarm at 5:30 a.m. to get her kids and herself up and ready. She's an elementary teacher in Marietta, Ga., with a seasonal business on the side. When a big holiday is coming up, she's typically burning the midnight oil most nights. On weekends, she says, "I've just got to catch up on my sleep."

Multiply her story about 30 million times, and you've got a snapshot of America's sleep situation.

For the past six years, the Sleep in America polls -- conducted on behalf of the National Sleep Foundation - have provided a snapshot of the nation's bedroom woes. Consistently, the polls have shown that about half of adults get a good night's sleep almost every night. Today, one in six adults report getting less than six hours of sleep nightly.

"It's no secret that we live in a 24/7 society," says Carl Hunt, MD, director of the National Center on Sleep Disorders Research at the National Institutes of Health. "There are many more opportunities to do things other than sleep - 24-hour cable TV, the Internet, email, plus long work shifts."

Indeed, how we live is affecting how we sleep, says Meir Kryger, MD, director of the Sleep Disorders Centre at St. Boniface Hospital Research Centre at the University of Manitoba. "Often, our sleep deficit is related to too much caffeine, nicotine, alcohol. Often it's related to work - stress from work, putting in long hours at work, working night shifts, working on the home computer until the second we go to sleep."

Yet there's strong evidence that lost sleep is a serious matter. The Sleep in America polls and several large studies have linked sleep deficits with poor work performance, driving accidents, relationship problems, and mood problems like anger and depression.

Nearly eight in 10 married couples say their partner has a sleep problem, like snoring, insomnia, or incessant tossing and turning. A quarter say sleep difficulties force their mate into separate sleeping quarters. More than 20% say they're too sleepy for sex.

A growing list of health risks has been documented in recent studies, too. Heart disease, diabetes, and obesity have all been linked with chronic sleep loss.

"People just don't realize how important sleep is, and what the health consequences are of not getting a good night's sleep on a regular basis," Hunt tells WebMD. "Sleep is just as important for overall health as diet and exercise."

They also don't talk to their doctors about sleep problems, he adds. "They figure everybody's sleepy, and what can be done about it anyway. And doctors don't ask about it. Sleep disorders are severely under-diagnosed and under-treated."

The Science of Sleep

Over the past decade, researchers have learned much about the science of sleep, says Mark W. Mahowald, MD, a neurologist and director of the Minnesota Regional Sleep Disorders Center in Rochester.