While previous studies had shown a strong correlation between sleep and academic performance, causal evidence linking the two using real-world tools like wearable trackers had remained limited. A widespread problem among young adultsThe study's starting point reflects a broader issue researchers say is common on college campuses nationwide. "Sleep deprivation is extremely common among young adults, yet universities have struggled to find affordable ways to improve student performance," Giuntella told ScienceAlert. How the experiment workedDuring the intervention phase, all participating students were given wearable Fitbit trackers to monitor their sleep patterns. "First, could a simple behavioral intervention help students develop healthier and more persistent sleep habits?"