(ProQuest) - Provides government statistics, business, trade, and research information, and private and international statistical information. U.S. government statistics go back to 1973 and private and state sources go back to 1980.
A website maintained by the National Library of Medicine. Has a wealth of practical information about many health-related issues. You can do a general search for statistics on sleep deprivation and it will list them by category and provide the original source citations.
Opinion polls are a resource for gathering public response to various issues. Please note how the polls were conducted as this will provide a better understanding of the information presented.
(Cornell University) - A search interface to the Roper Center for Public Opinion Research, a non-profit education and research organization that studies politics, government, public institutions, international relations, business, social affairs, and consumer behavior. Includes sources from major broadcasting and news organizations.