Celebrity board members in a nutshell. > Ariana Huffington joins Uber's board around the same time and releases her book on the importance of sleep right aroun

Celebrity board members in a nutshell. > Ariana Huffington joins Uber's board around the same time and releases her book on the importance of sleep right around this time, and piles of free copies are available in the office. Yes, sleep is important. So why am I at the office past midnight?