1.   Also, sleep researchers believe that human beings have a natural tendency to fall asleep during the afternoon.

2.   Already, sleep researchers are incorporating the news into their lives.

3.   But mainstream psychologists and sleep researchers have not reported any great flood of computer dreams even where you might expect them.

4.   But until recently, sleep researchers thought that elementary school students were generally sound sleepers.

5.   Intense or thrilling experiences of all kinds can follow people to bed, sleep researchers say.

6.   Mark R. Rosekind, a sleep researcher at NASA, left his post two years ago to start Alertness Solutions Inc.

7.   Peretz Lavie, a sleep researcher at Technion in Israel, says that the Boston model is not the only approach that could explain the strange dynamics.

8.   Second, as siesta-loving societies have long recognized, sleep researchers have found that there is an inborn readiness in human beings to take a midafternoon nap.

9.   Sleep researchers say our work schedules, commute times and television viewing habits are turning us into sleep-starved zombies.

10.   Sleep researchers and union officials say that at night, such a schedule may be a prescription for fatigue and disaster.