Emmanuel Frimpong and Melodee Mograss (IMAGE) Concordia University Caption “Our analysis showed that when exercise ended two hours before bedtime, there were sleep benefits, including the promotion of sleep onset and increased sleep duration,” say Emmanuel Frimpong (left) and Melodee Mograss. Credit Concordia University Usage Restrictions None License Original 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.