The Sleep Prescription

Every night, billions of glowing screens and energy-efficient bulbs quietly sabotage our sleep. But the problem isn't willpower—it's biology. In The Sleep Prescription, science writer Julian Foss Reyner unpacks the fascinating neuroscience of how artificial light hijacks your brain's ancient sleep circuitry. Drawing on decades of research reviewed by leading health organizations, this book reveals why your phone before bed is not just a bad habit but a direct assault on your circadian rhythm. You'll learn practical, evidence-based strategies to protect your sleep without abandoning modern life: from adjusting screen settings and choosing the right evening light bulbs to creating a wind-down routine that actually works. Discover how to harness light as a powerful tool for better sleep rather than letting it be an obstacle. Whether you're a night-shift worker, a parent of screen-addicted teens, or simply someone who wants to wake up refreshed, this book offers a clear, science-backed path to reclaiming your rest. Part of The Sagewell Wellness Library.