At Las Cruces High School in New Mexico, there’s a new addition to the schedule to go along with math, English, and history: nap time. School officials installed nap pods for students last spring to address the growing awareness that a lack of sleep can harm teens’ ability to do well in school. A 2016 study by the National Institutes of Health showed that only a third of U.S. teenagers are getting enough sleep, and a lack of rest can make it tough for them to focus. Las Cruces students are allowed to use the pods—comfortable chairs with movable canopies for privacy—for 20-minute snoozes when they’re feeling especially tired, before heading back to class. So far, the power naps have been a big hit, and other schools in the state are considering installing their own pods. “No matter how haggard or distraught you feel,” student Daniel Salinas tells U.S. News & World Report, “it brings back vitality and grants you the peace of mind that you can continue the day without collapsing.”