Freda Patterson, University of Delaware (IMAGE) University of Delaware Caption University of Delaware researcher Freda Patterson and collaborators analyzed enormous amounts of data in the sleep study they published in the Annals of Behavioral Medicine, showing that duration of sleep and bedtimes are related to heart-healthy behaviors. Credit UNIVERSITY OF DELAWARE Usage Restrictions Must credit University of Delaware License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.