Earlier bedtimes and more sleep displace sedentary behavior but not moderate-to-vigorous physical activity in adolescents-V8I3 Earlier bedtimes and more sleep displace sedentary behavior but not moderate-to-vigorous physical activity in adolescents-V8I3 Download COVID-19 hardships and self-reported sleep quality among American adults in March and April 2020: Results from a nationally representative panel study-V8I3 Economic burden of insufficient sleep duration in Canadian adults-V8I3