Simply taking a couple of naps may counteract the impact of a sleep-restricted night on stress and immune markers, a finding that could potentially benefit night and shift workers or other chronically sleep-deprived populations, the results of a French study indicate.

Brice Faraut, PhD, from the Université Paris Descartes-Sorbonne Paris Cité, France, and colleagues found that, after a night with only 2 hours of sleep, taking two naps of just 30 minutes each appeared to normalize levels of cytokines and catecholamines.

"Napping as a countermeasure to sleep restriction could, in addition to benefits on alertness, improve neuroendocrine stress and immune recovery, with a potential prophylactic long-term effect on cardiovascular health," the researchers write.

Do you have chronic sleep problems? You may be able to significantly improve your ability to get a restful night of sleep by practicing a popular form of meditation, a rigorous new study shows.

The findings may be particularly relevant to Americans older that 55, about half of whom have some form of sleep trouble. The research, a clinical trial published in the journal JAMA Internal Medicine, recruited about 50 older adults with moderate sleep problems and assigned them to follow one of two programs.

If you've ever been jolted awake by your alarm clock but were so momentarily confused that you reached for the telephone instead of hitting the snooze, you likely experienced an episode of what's called "sleep drunkenness." And you're not alone.

In a new study, researchers found that sleep drunkenness may affect one in every seven people. The disorder causes a person to be so confused upon being woken up that they don't know what they are doing.

The study, published Monday in the journal Neurology, also determined that 84 percent of people who experienced an episode of sleep drunkenness also suffered from a related sleep disorder, a mental health disorder or were taking psychotropic drugs such as antidepressants.

We've known for some time that sleep deprivation is associated with decreased productivity and a lack of focus, but that's not the end of the story: Insufficient sleep is also linked with less innovation, lower job satisfaction and unethical behavior in the workplace.

At last week's Corporate Sleep Health Summit, hosted by Harvard Medical School, some of the country's top sleep researchers and corporate leaders came together to discuss the latest research on the damaging impacts of sleep deprivation on American workers and corporate bottom-line objectives. But more importantly, the discussions raised important questions about how we can create a movement to improve sleep health. How can we make sleeping four hours a night go the way of the two-martini business lunch or smoking in the boardroom? The summit aimed to offer solutions to the sleep-deprivation crisis that's harming our health and our businesses.

Women, in general, get more shuteye than men.

That's what Jawbone, the maker of wearable bands that measure activity and track sleep, found when it crunched data from millions of people around the world who use Jawbone products.

Jawbone's data scientists looked at anonymous data from millions of Jawbone users and over 300 million nights of sleep and found that on average, women sleep about 20 minutes more than men each night.

At 8:30 a.m., a bleary-eyed young woman wearing a bright orange bandanna and fuzzy, gray slippers is staring at a computer screen. When a number appears in a small box, she hits the space bar. She does it again and again, sometimes quickly and other times much more slowly.

“She’s very sleepy. She has a lot of lapses,” whispers Namni Goel, a sleep researcher at the University of Pennsylvania Perelman School of Medicine.