Sleep Extension for Sleep Disorders

The goal of this interventional study is to learn if a digital sleep extension intervention can improve sleep and mood in young urban adults with mood symptoms. The main questions it aims to answer are: Will this intervention improve sleep? Will this intervention improve mood? Does the effect of this intervention change based on environmental factors like noise and light pollution? Researchers will compare participants receiving the sleep intervention to participants receiving a "general healthy living" intervention to see if outcome are different across groups. Participants will: * receive 6 weeks of brief once weekly telephone coaching and read once weekly educational content * have their sleep monitored daily with a FitBit and Somnofy sleep device and during the 6-week intervention period * respond to questionnaires at the start of the intervention, halfway through the intervention, at the end of the intervention, and finally 4 weeks after completing the intervention