Americans aren't sleeping enough. Here's what could help

Elenathewise/iStockphoto/Getty Images Adults should be getting at least seven hours of sleep each night, according to the American Academy of Sleep Medicine . "Below that, there's clear evidence that you're going to feel lethargic during the day," says James Rowley , a pulmonologist and the program director of the Sleep Medicine Fellowship at Rush University Medical Center, as well as a past president of the AASM board of directors. …