Getting enough shut-eye really matters for children, and those who are poor need it the most - We all know kids, especially, need a good night's sleep in order to thrive. After studying thousands of children, psychologist Mona El-Sheikh, a professor of child development, says children who don't get enough shut-eye suffer serious consequences. For more on this topic and more Science Nation reports, visit http://www.nsf.gov/news/special_reports/science_nation/index.jsp