Every country has its own traditions, holidays, languages, nutritious breakfasts[1] and, it turns out, sleep habits. In the "first international public opinion poll on sleep[2] ," the National Sleep Foundation (NSF) has taken a closer look at just how different we are between the sheets.


"Although we know that everyone sleeps, the rather remarkable cultural differences within this universal experience have not been adequately explored," International Bedroom Poll[3] expert panel member Namni Goel, Ph.D., said in a statement. "It is NSF's hope that this initial poll will inspire more research on this critical yet understudied topic."


Researchers polled 1,500 residents of six countries -- Mexico, Canada, Germany, Japan, the United Kingdom and the United States -- between the ages of 25 and 55 about their sleep habits, about topics including bed partners, the components of a relaxing bedroom and preferred pajama style. So how does the U.S. compare?


Hours Slept

Japan logged the fewest hours of sleep per weeknight, with an average of just 6 hours and 22 minutes. The U.S. was not far behind at 6 hours and 31 minutes. The majority of American respondents said they get between six and seven hours of sleep on weeknights. Mexico clocked the most sleep, with 35 percent of people saying they sleep for eight hours or more on weeknights. Across the board, respondents snoozed for about 45 extra minutes on weekends or other non-workdays.


The NSF recommends that adults get seven to nine hours of sleep[4] to avoid hazardous side effects of sleep deprivation[5] , including increased risk of stroke, diabetes and early death.


Sleep Quality

The poll also showed that most people aren't sleeping well. Less than half of people in five of the countries said they get a good night's sleep every night or almost every night of the week. Among Americans, 44 percent say they get a good night's sleep every night or almost every night, 31 percent answered a few nights a week, 20 percent rarely sleep well and 5 percent say they never do. Japan was the only country where more than half of the respondents -- 54 percent -- said they get a good night's sleep pretty regularly.


Bedtime Behaviors

Sleep quality may be affected by how we choose to spend our time before lights out. The majority of Americans use some sort of gadget in the hour before bed[6] , even though we know that doing so triggers our brains to fight fatigue. But it turns out we're not the worst offenders in this regard. In Mexico, 80 percent of respondents say they watch TV before bed, followed by 73 percent of Americans. Japanese respondents were most likely to use a computer, laptop or tablet before bed at 65 percent. Only 51 percent of Americans said the same. Cell phone usage prevails in Canada, with 45 percent of respondents saying they're on their phones before bed, while only 34 percent of Americans used theirs. Mexico has the highest percentage of people who meditate or pray before going to sleep, followed by the U.S., at 62 and 47 percent, respectively. U.K. residents were most likely to opt for a soothing drink before bed or to read a book or magazine in print.


The Impact Of Not Enough Sleep

Perhaps because they seem to get the best rest, the Japanese respondents noted a lesser impact of getting too little shut-eye. For others, skimping on sleep significantly impaired certain aspects of their lives, like work productivity, social life, family responsibilities and mood. Nearly three-quarters of people in the U.S. -- 73 percent -- who say they do not get enough sleep recognize it's impacting their health, second only to Mexico, where 74 percent of respondents said the same.


Napping

For all the talk we do here in the States about our lack of appreciation for sleep[7] , Americans seem to be doing a fair share of napping. Over half of U.S. respondents -- 51 percent -- said they'd taken a nap in the previous two weeks. Japan tied with the U.S., followed by the U.K. (45 percent), Germany (44 percent), Mexico (39 percent) and Canada (35 percent).


Click over to the National Sleep Foundation's summary of the findings[8] for even more details, then tell us what you think in the comments below.





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  • You're Ravenous


    If you find yourself hungry all day (and not because you skipped breakfast or have recently amped up your gym routine) it might be because you've been skimping on sleep. Research presented at the 2010 meeting of the Society for the Study of Ingestive Behavior linked little shuteye with <a href="http://www.huffingtonpost.com/2012/07/10/sleep-hunger-deprivation-_n_1659954.html">higher levels of the hormone ghrelin</a>, the same one that triggers hunger, HuffPost reported. This uptick in the hunger hormone seems to lead to not only increased snacking, but also a hankering for <a href="http://www.sciencedaily.com/releases/2004/12/041206210355.htm">high-carb, high-calorie foods</a>, according to a 2004 study, which may help explain why people who don't get enough sleep are at a greater risk of obesity.




  • You're Weepy


    Ever find yourself tearing up over an embarrassing TV commercial? While women might be quick to blame PMS, it could be a lack of sleep sending your emotions into overdrive. A 2007 study found that sleep-deprived brains were <a href="http://usatoday30.usatoday.com/news/health/2007-10-22-sleep-deprivation-brain_N.htm">60 percent more reactive</a> to negative and disturbing images, <em>USA Today</em> reported. "It's almost as though, without sleep, the brain had reverted back to more primitive patterns of activity, in that it was <a href="http://berkeley.edu/news/media/releases/2007/10/22_sleeploss.shtml">unable to put emotional experiences into context</a> and produce controlled, appropriate responses," Matthew Walker, senior author of the study, said in a statement.




  • You're Forgetful Or Unfocused


    You might be tempted to blame your trouble focusing on your age or stress or your overflowing email inbox, but a lack of sleep could be the true culprit. Too few hours in dreamland has been linked to a <a href="http://www.webmd.com/sleep-disorders/excessive-sleepiness-10/emotions-cognitive">whole host of cognitive problems</a>, like difficulty focusing and paying attention, confusion, lower alertness and concentration, forgetfulness and trouble learning, WebMD reports. So next time you find yourself forgetting where you put your keys, consider how much sleep you got last night.




  • You Can't Shake That Cold


    If you keep coming down with the sniffles -- or can't seem to kick that never-ending case -- you might want to assess your sleep schedule. A 2009 study found that people who sleep fewer than seven hours each night have almost <a href="http://articles.latimes.com/2009/jan/17/science/sci-sleep17">three times the risk of catching a cold</a> than people who slept for at least eight hours, the <em>LA Times</em> reported.




  • You're Clumsier Than Usual


    First you knock the alarm clock off the dresser, then you spill the milk as you're pouring your cereal, then you stub your toe on the way out the door -- you've become a klutz overnight. Researchers don't know exactly why, but sleepy people seem to <a href="http://www.prevention.com/amisleepdeprived/list/5.shtml">"have slower and less precise motor skills,"</a> Clete Kushida, M.D., Ph.D., director of Stanford University Center for Human Sleep Research told <em>Prevention</em>. Reflexes are dulled, balance and depth perception can be a little wonky and since you may also have trouble focusing, reaction time can be slowed, meaning you can't quite catch the egg carton before it hits the floor.




  • You've Lost That Lovin' Feeling


    If you or your partner just can't get in the mood, and stress or an underlying health problem isn't to blame, you might want to spend some extra time between the sheets -- sleeping. Both men and women who don't get their 40 winks experience a <a href="http://www.webmd.com/sleep-disorders/excessive-sleepiness-10/10-results-sleep-loss">decreased sex drive</a> and less interest in doing the deed, WebMD reports. A lack of sleep can also <a href="http://www.everydayhealth.com/erectile-dysfunction/causes-of-low-libido.aspx">elevate levels of cortisol</a>, the stress hormone, according to Everyday Health, which doesn't help in the bedroom either.




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