The second day of the SLEEP 2010 scientific program is underway at the Henry B. Gonzalez Convention Center in San Antonio. Plenary speaker Dr. Daniel Buysse is approaching the end of his lecture "New Adventures in Sleep Quality."Starting at 9 a.m., four more authors of abstracts will deliver oral presentations. Research abstracts will be presented as posters from 10:15 a.m. to 12:15 p.m. A