(1)Have you ever felt your mind getting confused after a sleepless night and you couldn't come up with an original thought no matter how hard you tried? (2)You were probably right if you thought that was caused by a lack of sleep. Dr. Home, a sleep researcher in England, studied 24 college students. One group got their normal eight hours of sleep. The other group didn't get any sleep at all―they stayed awake all night. The next day, Dr. Home tested the students. He asked them questions that required creative and original thinking. One of the questions was "How many uses can a box be put to?" (3)The results? The wide-awake students did well on the tests. The tired students did poorly. (4)Research has already shown that tired people can do okay on tests of routine thinking, like simple addition. But Dr. Home tested creative thinking only. (5)As part of his study, he offered an amount of money as a reward to the tired students if they did well. But even this encouragement wasn't enough to h