This collection aims to shed light on recent developments that pertain to the two-process model of sleep regulation, synaptic and astroglial mechanisms, and welcomes alternative hypotheses for sleep regulation.

This collection invites research articles and reviews dealing with structural, biochemical and/or biophysical in vitro studies on clock- and clock-related targets.

This collection on daily rhythms and energy metabolism invites research integrating the disciplines of sleep and circadian biology with exercise physiology.

Get to know the founding Editor-in-Chief, Dr. John O'Neill, as he answers questions about his research experience and becoming involved with the journal.