Just what workers need at lunchtime -- a quick nap.

Jul. 18--Are your employees dozing at their desks, sapping your company of productivity? Studies show that 40 percent of adults admit their work suffers if they haven't got enough sleep the night before; 68 percent say their concentration is diminished by drowsiness. One third admit they would nap at work if they could.

Does post-industrial society need to reintroduce the pre-industrial siesta? Yes, according to the sales pitch of a New York start-up firm called MetroNaps, which opened its first napping facility on the 24th floor of the Empire State Building in May.