Study subjects who had less than seven hours of sleep were at greater risk than those who got eight hours of sleep a night.
Andrew Lambourne, from the campaign group No More Night Flights, which demonstrated outside Luton town hall, said without controls in place "we will effectively only get five hours sleep".
After a marathon session until well after midnight, Spain's finance minister suggested that the negotiators should get a few hours sleep, leaving the documents to be drawn up and signed thereafter.
For the study, very short sleep patterns were defined as less than five hours a night, short sleep was five to six hours a night, standard sleep was seven to eight hours, and long sleep was nine or more hours a night.
Adil knocked softly at Mohammed's door, then staggered off to bed to catch a few hours' sleep before the day's shoot, in just three hours time.
About 45% of adolescents ages 11 to 17 get less than eight hours of sleep a night, even though teenagers need between nine and 10 hours.
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Having said that, we do know sleep is key: Teens need an average of one or two hours more sleep than their 9- and 10-year-old siblings, yet studies show most teens gets a few hours less.
Most adults should get 7-8 hours of sleep each night, so do the math.
Fu, who describes herself--inaccurately--as "pretty relaxed, " claims she usually gets seven hours of sleep a night.
Ellis needs six hours of sleep and likes to go to bed at midnight.
Fu, who describes herself--inaccurately-- as "pretty relaxed, " claims she usually gets seven hours of sleep a night.
According to the National Institutes of Health, most adults need seven to eight hours of sleep a night.
At Wichita Falls we stopped for two hours of sleep in a motel.
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"I'm running on two hours of sleep, " said Pitt senior Dmitry Kalika, who was evacuated from his dorm early Wednesday.
Former President of the United States Bill Clinton once said he only got four to five hours of sleep.
Most adults need 7-9 hours of sleep every night, so take a look at your wake-up time, and do the math.
The 100-hour work week and getting five hours of sleep per night have become a sort of Silicon Valley Badge of Honor.
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After the final rose is in, around midnight, Ms. Blair and her cohorts catch a few hours of sleep on cots in their workspace.
The competitors take turns sleeping in a shared single bed and get little more than five hours of sleep a night if they're lucky.
While there is no magic number when it comes to hours of sleep, there are a few effects of a lack of enough sleep.
"He'd had two hours of sleep, " recalled another designer, Adam Mosseri.
Everybody struggles to maintain his or her temper, knowing that even the tightest relationship can dissolve into a hysterical screaming match after 36 hours without sleep.
So we calculated that if we were home by 10, I could be asleep by 10:30, wake up at 3:30 am and still get five hours of sleep.
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Lorry driver Jeremy Aiken told me he was lucky as he could pull down the back of his cab and get a few hours of sleep, unlike others.
A's manager Bob Melvin had to scrap his normal postgame routine just to get home in time to catch a few hours of sleep before returning to the ballpark.
Senior staff that spend every minute with the candidate, including the traveling press secretary and body person, can sometimes average 3-4 hours of sleep a night, almost always in a different bed.
The app sets goals for you according to World Health Organization guidelines, like eight hours of sleep a night and 10, 000 steps a day, and shows the average met by most Up users.
On the other hand, those who aren't getting seven hours of sleep may be kept up by another condition -- anxiety, sleep apnea, or an undiagnosed illness -- that could be the real risk factor.
"I'm happy, but now I have to go back home, take a couple of hours of sleep, and then take a close look at my new toy, " said 22-year-old Michael, who declined to give his surname.
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