npj Biological Timing and Sleep considers research that explores all aspects of sleep, circadian and other biological rhythms.

This collection invites research on light exposure and its impact on human physiology and behaviour.

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.