The paper The effects of self-selected light-dark cycles and social constraints on human sleep and circadian timing: a modeling approach, co-authored by Anne Skeldon, Andrew Phillips (Harvard), and Derk-Jan Dijk (FHMS, Surrey) has been published in the journal Scientific Reports.  The paper is attracting considerable media attention.  Anne spoke on BBC Surrey radio today (28 March), and the story has been picked up by the Times, Metro, Daily Mail, and the Belfast Telegraph.  The University has a press release on the paper here.