Congratulations to Matthew Bailey for passing his PhD viva today!  The external examiner was Peter Achermann (Zurich), the internal examiner was Ian Morris,  and Philip Aston was in the role of Chair. The title of Matt‘s thesis is “Modelling sleep-wake regulation: the dynamics, bifurcations and applications of the two process model”, and his project has been supervised by Gianne Derks and Anne Skeldon.