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　　Few of us make money by losing sleep．But three graduate students at Brown University in Providence built a company around sleep deprivation(睡眠不足)．

　　Jason Donahue, Ben Rubin and Eric Shashoua were working late nights in Brown’s business and engineering schools．They began thinking about ways to sleep better．They discovered they weren’t alone in burning the midnight oil．Around 20％ of Americans get less than six hours of rest a night．

　　The friends imagined a smart alarm clock that could track how much time people spend in the most restorative(有回复作用的)stages of the sleep cycle：REM(rapid eye movement)and deep sleep．What would it cost to design such a thing? Five years of research, 20 employees, ＄14 million and a whole lot of doubting from investors and scientists．

　　Their company, Zeo, based in Newton, Mass, launched its product in June, 2009．The Zeo device uses a headband with tiny sensors(传感器)that scan your brain for signs of four sleep states －REM, light, deep and waking sleep．The smart alarm clock displays a graph of your sleep pattern and wakes you as you’re not in REM sleep(which is when you’re least groggy)．In the morning you can upload the data to the company’s Web site, and so track your sleep over time．Most of the feedback comes in the form of Zeo’s ZQ score showing how well you’ve slept．

　　“Zeo allows people to unlock this black box of sleep,” says Dave Dickinson, a health-care CEO．

　　Whether any of this actually improves sleep is up to the consumer, who will also need to make lifestyle changes like cutting out alcohol before bedtime or caffeine after 3 pm．

　　For now the company is selling Zeo online only．Dickinson also plans to spread it to countries such as Australia, where sleep deprivation approaches US levels．

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阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。

　　When I stepped out the plane from Miami into Charlotte, North Carolina, airport for a connecting flight home, I immediately knew something was wrong．Lots of desperate people crowded the terminal．I quickly learned that flights headed to the Northeast were called off because of a storm．The earliest they could get us out of Charlotte was Tuesday．It was Friday．A gate agent stood on the counter and shouted, “Don't ask us for help! We cannot help you! ”

　　I joined a crowd that ran from terminal to terminal in search of a flight out．Eventually, I found six strangers willing to rent a van with me．We drove through the night to Washington, where I took a train the rest of the way to Providence．

　　The real problem, of course, is that incidents like this happen every day, to everyone who flies, more and more often．It really gets to me, though, because for eight years I was on the other side, as a flight attendant for Trans-World Airlines(TWA)．

　　I know the days are gone when attendants could be written up if we did not put the lines napkins with the TWA logo in the lower right-hand corner of the first-class diners’ trays．As are the days when there were three dinner options on flights from Boston to Los Angeles in economy class．When, once, stuck on a tarmac(机场停机坪)in Newark for four hours, a planeload of passengers got McDonald's hamburgers and fries by thoughtfulness of the airline．

　　I have experienced the decline of service along with the rest of the flying public．But I believe everything will change little by little, because I remember the days when to fly was to soar(翱翔)．The airlines, and their employees, took pride in how their passengers were treated．And I think the days are sure to come back one day in the near future．

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