Sweet dreams: Wealthy white women sleep best. File under "Duh": The richer you are, the better you sleep, study finds.

This might strike many of you as "duh," but here goes:

The richer you are, the better you sleep, and well-off white women get more shut-eye than other groups, according to researchers at the University of Chicago who studied 669 adults between 38 and 50 years old. The Chicago Sun-Times reports Thursday on the study. Some of its findings:

Full Story: http://blogs.usatoday.com/ondeadline/2006/07/sweet_dreams_we.html