Is Lack of Sleep Killing Your Career?

A recent survey of over 20,000 people around the world found that not only are we not sleeping all that well at night, but come sunrise, we're calling in sick to work. The average person missed 7.4 days of work per year due to bad sleep! That's over a working week lost to tossing, turning, and plain old staring at the ceiling at night. Just how can we improve our sleep cycles and wake up to a well-rested self?