Why 10pm is the Perfect Bedtime

BETTER SLEEP QUALITY

Be wary of burning the midnight oil because there’s a clear link between sleeping early and improved sleep quality.Matthew Walker, leading sleep expert (currently Professor of Neuroscience and Psychology at the University of California, as well as founder and director of the Center for Human Sleep Science), in his New York Times bestseller Why We Sleep: The New Science of Sleep and Dreams explains the science behind this:Sleep is made up of 90-minute cycles, during which the brain moves from deep non-rapid eye movement (non-REM) sleep to rapid eye movement (REM). The cycles remain fairly consistent but the split between non-REM and REM changes.