Anne Skeldon is visiting the Mathematics Institute, University of Warwick, on 23-24 April for a MiR@W Day on Circadian and Sleep-Wake Cycle:  Models and Data. She is giving a talk in the opening session on “Mathematical modelling of sleep/wake regulation: the interaction of light, sleep, ciradian and social rhythms“.  The talk is based on joint work with Derk-Jan Dijk of the Surrey Sleep Research Centre.