Presidential sleeping habits (CNN video)

Presidential sleeping habits, 2:35 min.

CNN's Jason Carroll looks at the hours worked by past presidents and the lessons President Obama could learn.

Related reading:

Do U.S. presidents age faster in office? Possibly, but 70% actually lived longer than expected. LA Times, 2011.
The Presidents Club | Photos: Oval Office Secrets from Truman to Obama | TIME, 2012.