This popped up on the NYT site the other day.

Shocked? Right.
Looking at the breakdown, I'm more interested in the fact that it looks like you have to make at least $60,000 to be as well rested as the rest of the country. Also, the gap between tired men and women is pretty large (26% vs. 33%), and means that women are all more tired than average, whether or not there were kids in the house.

The blog post also neglects to mention the survey's other findings that those who are more well rested were also more likely to answer that they felt they were "thriving" (rather than "struggling" or "suffering").
I'd write more, but now I'm sleepy.