US Sleep Loss Variation 2050 and 2099 (IMAGE) University of California - San Diego Caption Areas of the western and northern United States -- where nighttime temperatures are projected to increase most -- may experience the largest future changes in sleep. Credit Courtesy N. Obradovich Usage Restrictions Only with reporting on this research 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.