The results of the National Sleep Foundation’s 2023 Sleep in America poll have been released. This year’s study focused on mental health, and the results highlight a surprisingly strong link between poor sleep and depressive symptoms. The reverse is also true: adults with good sleep habits were likely to be free of significant depressive symptoms. One of the metrics addressed in the study was sleep duration; the poll found that 50% adults who sleep less than the recommended 7-9 hours on a weekday night experience some level of depressive symptoms (here’s more on how much sleep you need by age).