*  Some 70 million people in the US have a sleep problem.  About 40 million adults suffer from a chronic sleep disorder; an additional 20-30 million have intermittent sleep-related problems.

*  Effects of sleep loss on work performance may be costing US employers some $18 billion in lost productivity.

*  America's adults average 6.9 hours of sleep each night, slightly less than the range of 7-9 hours recommended by many sleep experts.

*  Three-quarters of America's adults (75%) said they frequently experienced at least one symptom of a sleep problem in the past year.

*  More than 3/4 of America's partnered adults (77%) say their partner nas a sleep-related problem; the most common problem is snoring.

*  One-quarter of America's adults, 47 million people, don't get the minimum amount of sleep they say they need to be alert the next day.

*  People who are already hypertensive may increase their risk of heart attack or stroke if they fail to get adequate sleep.

*  Shift workers are 30%-50% more likely to develop heart disease than day workers in the same industry.

*  More than 1/2 of America's adults nap at least once a week.

*  While the majority of America's adults do not use anything to help them sleep, for those who do use a sleep aid, alcohol appears to be the most popular choice; 11% of adults said they used alcohol, beer, or wine at least a few nights a month, 9% used over-the-counter sleep aids, 7% said they used prescription sleep medications.

*  About 6 in 10 adults licensed to drive (60%), or about 118 million people, said they have driven drowsy at least once in the past year.

*  17%, 32 million people, said they fell asleep at the wheel.

*  According to the National Highway Traffic Safety Administration, at least 100,000 police-reported crashes are caused by drowsy drivers each year.  These crashes result in more than 1,500 deaths and 71,000 injuries.