This Nov. 11, 2013 file photo shows a bedroom built...

This Nov. 11, 2013 file photo shows a bedroom built by Mike Spangler using some reclaimed materials, in Belle, W.Va. Nearly one-third of American adults don't get the recommended seven to nine hours of sleep per night. Some of the major causes: Stress, anxiety and a culture that experts say is about productivity, not rest. Credit: AP/Craig Cunningham

In a story published April 23, 2024, about sleep tips, The Associated Press erroneously reported the name of an academic medical institution. It is Weill Cornell Medicine, not Weill Cornell Medical College.