Matt Berninger

Dozens of America's wealthiest taxpayers - including hedge fund legend Michael Steinhardt, super trial lawyer Guy Saperstein, and Ben Cohen of Ben & Jerry's fame - have appealed to President Obama not to renew the Bush tax cuts for anyone earning more than $1 million a year.

If you think about evolution, sleep, at some time, was a dangerous undertaking. You lie down in your cave or shelter, and along comes a predator and has you for dinner. Many creatures do not sleep or sleep while standing so they can escape from dangerous situations.