“Napping is still often stigmatized, for example by being associated with illness or a lack of ambition.
But many people, and experts, praise the benefits of a siesta or a power snooze. Confessed nappers include Albert Einstein, Winston Churchill, Thomas Edison and Presidents Ronald Reagan and Bill Clinton.
Napping, writes James B. Maas, a Cornell University sleep expert, “should have the status of daily exercise.”
Mammals that divide their day between two distinct periods — sleep and wakefulness — are in the minority, according to the National Sleep Foundation, which pointed out on its Web site: “While naps do not necessarily make up for inadequate or poor quality nighttime sleep, a short nap of 20-30 minutes can help to improve mood, alertness and performance.”