Are you jealous of the "sleepless elite" ?

Excerpts from a Wall Street Journal article:

For a small group of people—perhaps just 1% to 3% of the population—sleep is a waste of time.

Natural "short sleepers," as they're officially known, are night owls and early birds simultaneously. They typically turn in well after midnight, then get up just a few hours later and barrel through the day without needing to take naps or load up on caffeine.

They are also energetic, outgoing, optimistic and ambitious, according to the few researchers who have studied them. The pattern sometimes starts in childhood and often runs in families...

A few studies have suggested that some short sleepers may have hypomania, a mild form of mania with racing thoughts and few inhibitions. "These people talk fast. They never stop. They're always on the up side of life," says Dr. Buysse...

There is currently no way people can teach themselves to be short sleepers. Still, scientists hope that by studying short sleepers, they can better understand how the body regulates sleep and why sleep needs vary so much in humans...

Dr. Fu was part of a research team that discovered a gene variation, hDEC2, in a pair of short sleepers in 2009. They were studying extreme early birds when they noticed that two of their subjects, a mother and daughter, got up naturally about 4 a.m. but also went to bed past midnight.

Genetic analyses spotted one gene variation common to them both. The scientists were able to replicate the gene variation in a strain of mice and found that the mice needed less sleep than usual, too...

...there is one question that is more revealing than anything else: When people do have a chance to sleep longer, on weekends or vacation, do they still sleep only five or six hours a night? People who sleep more when they can are not true short sleepers, he says...

To date, Dr. Jones says he has identified only about 20 true short sleepers, and he says they share some fascinating characteristics. Not only are their circadian rhythms different from most people, so are their moods (very upbeat) and their metabolism (they're thinner than average, even though sleep deprivation usually raises the risk of obesity). They also seem to have a high tolerance for physical pain and psychological setbacks...

Some short sleepers say their sleep patterns go back to childhood and some see the same patterns starting in their own kids, such as giving up naps by age 2...

More at the link. I'm jealous.