Too pooped to finish that brief? There's a nap for that.

They're called “energy pods,” and White & Case has two of them in its D.C. office. At $13,000 a pop, they're not cheap, but the rewards of better productivity and lawyer satisfaction pay off, fans say.

We've all been there. You're at the office, it's 3:30 in the afternoon and you're so drowsy you could weep. To chase away the sandman, some people grab a cup of strong coffee; others head to the vending machine for a bag of Funyuns. But embracing that urge to sleep on the job by spending 20 minutes in a napping chamber may be the most effective strategy.