Power nap may refresh employees

(CNN) -- It's been one of those days at work. Eating a big lunch, then attending a long afternoon meeting may be enough to put the average employee asleep.

CNN NewsPass VIDEO CNN's Bill Delaney talks Dr. Sarah Mednick about her research into naps and how they help improve workplace productivity (May 27) Play video

But the boss may be more forgiving about employees nodding off after learning about the effects that naps can have on worker productivity.

Harvard researchers may have discovered a way to put a jolt into the workday minus caffeine. Their research suggests that those who nap may be more effective in their jobs.

These findings notwithstanding, a siesta is unlikely to become widespread policy in U.S. companies anytime soon.

Find out what these researchers have to say about the benefits of snoozing on the job.