For the study, researchers at the University of Oregon and the State University of New York Upstate Medical University analyzed data from more than a thousand 16 to 24-year-olds in which participants reported their sleep/waking hours, including weekend catch-up sleep. While one might imagine that teens who spring out of bed early each morning - regardless of the day of the week- are more mentally sound, the opposite may be true. Interestingly, the study found that teens who slept in on weekends were significantly less likely to report symptoms of depression. The group had a 41% lower risk of depression when compared with the group who kept a more regimented sleep schedule on weekends.