Ever wondered whether sleeping 8 hours straight is better than splitting your sleep between the night and a daytime nap? Recent research shows both can work—but in different ways. We’re talking to Dr Prerna Varma, Senior Lecturer in Psychology at the Turner Institute for Brain & Mental Health and Sleep Health Foundation researcher. She helps us separate fact from fiction, explaining how sleep patterns, circadian rhythms, and rest affect the body.

Fun Fact:

• Historically, people often slept in two phases (“first sleep” and “second sleep”) before electric lighting.