While there was a necessary initial focus on physical health consequences of the COVID-19 pandemic, it is becoming increasingly clear that many have experienced significant social and mental health repercussions as well . It is important to understand the effects of the pandemic on well-being, both as the world continues to recover from the lasting impact of COVID-19 and in the eventual case of future pandemics . On March 20 , 2020, we launched an online daily survey study tracking participants' sleep and mental well-being . Repeated reports of sleep and mental health metrics were collected from participants ages 18-90 during the initial wave of the pandemic (March 20 - June 23 , 2020). Given both the comprehensive nature and early start of this assessment, open access to this dataset will allow researchers to answer a range of questions regarding the psychiatric impact of the COVID-19 pandemic and the fallout left in its wake.