About the Authors

Derk-Jan Dijk

d.j.dijk@surrey.ac.uk

Affiliation Surrey Sleep Research Centre, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom

Simon N. Archer

Affiliation Surrey Sleep Research Centre, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.