Amie Gordon is a social-personality psychologist who studies the factors that help and harm close relationships. She is working with Wendy Berry Mendes at UC San Francisco to investigate the effects of sleep on gratitude in close relationships. Scientists know that poor sleep hurts relationships, but don’t really know why. Recently, researchers have shown that gratitude plays an important role in promoting relationship quality. Extending this work to the domain of sleep, Amie and her colleagues are examining whether poor sleepers are less grateful for their partners psychologically, behaviorally, and physiologically. These findings will help better illuminate how sleep (or lack thereof) impacts relationships, which are so critical for health and well-being.