A longitudinal analysis of COVID-19 lockdown stringency on sleep and resting heart rate measures

We showed how midsleep timing during the COVID-19 pandemic became later globally reflecting later bedtimes and waketimes (through a collaboration with Oura Health OY). This reflects a global preference for later bedtimes than what is historically regarded as normative, likely reflecting the influence of ready means of communicating with and being engaged by large scale electronically enabled social networks.