Changes of evening exposure to electronic devices during the COVID-19 lockdown affect the time course of sleep disturbances
Federico Salfi, Giulia Amicucci, Domenico Corigliano, Aurora D’Atri, Lorenzo Viselli, Daniela Tempesta, Michele Ferrara

Changing school start times: impact on sleep in primary and secondary school students
Lisa J Meltzer, Kyla L Wahlstrom, Amy E Plog, Matthew J Strand

Sleep spindles comprise a subset of a broader class of electroencephalogram events
Tanya Dimitrov, Mingjian He, Robert Stickgold, Michael J Prerau