1. Does the demography of sleep contribute to pre-existing health disparities? / Lauren Hale, Paul E. Peppard, and Terry Young -- 2. Sleep in America : is race or culture an important factor? / Girardin Jean-Louis. [et al.] -- 3. Sleep-related problems in childhood / Stephen H. Sheldon -- 4. Impact of sleep-disordered breathing on quality of life and school performance in children / Nira A. Goldstein -- 5. Sleep in aging / Andrew A. Monjan -- 6. Sleeping environments / Alain Muzet -- 7. Impact of sleeping environment on sleep quality / Gaby Bader -- 8. Interaction between sleep and stress in shift workers / Torbjorn Akerstedt -- 9. Sleepiness, sleep disorders, and accidents / Pierre Philip and Jaques Taillard -- 10. Medico-legal aspects of sleep disorders / John Shneerson -- 11. Insomnia : impact on work, economics, and quality of life / Damien Leger -- 12. Public health impact of insomnia and low-cost behavioral interventions / Meagan Daley, Simon Beaulieu-Bonneau, and Charles M. Morin -- 13. Economic impact of sleep loss, sleepiness, and sleep disorders / Kin M. Yuen and Clete Kushida -- 14. Pain and poor sleep / Gilles Lavigne and Christiane Manzini -- 15. Sleep apnea and stroke / Henry Yaggi and Vahid Mohsenin -- 16. Narcolepsy and idiopathic hypersomnia / Michel Billiard.