Source: http://www.bloomberg.com/news/features/2...

In Silicon Valley mythology, sleeping at the office is second only to working out of a garage. According to a new biography by Bloomberg Businessweek staff writer Ashlee Vance, Elon Musk dozed on a deskside beanbag at one of his startups and showered at a YMCA, where he kept a change of clothes in a locker. Like many tech founders, Box Chief Executive Officer Aaron Levie worked out of his home, hiring people to work there until home wasn’t big enough. When the company moved to a bigger office, he took his bed. “I don’t think there was any downside,” he says. “I don’t think in any circumstance I would have been able to date anybody anyway, being pretty uncool and working all the time.”