Reset Your Clock: A Practical Guide to Understanding and Fixing Circadian Rhythm Sleep Disorders
Sleep is not just about how many hours you get - it's about when your body is ready to sleep, and whether that timing aligns with your life. For millions of people, it doesn't. They lie awake long after midnight, unable to fall asleep no matter how tired they are. Or they wake before dawn, exhausted but unable to return to rest. They drag through morning shifts after years of night work, or step off a long-haul flight and spend a week feeling like their body belongs to a different time zone. They've tried sleep hygiene tips, melatonin, blackout curtains - and still feel out of sync.
The problem isn't willpower or discipline. It's timing.
Reset Your Clock is a practical, evidence-based guide to one of the most overlooked dimensions of sleep health: circadian rhythm. Inside, you'll discover how your body's internal timing system - a sophisticated biological clock regulated by light, temperature, activity, and hormones - governs not just when you sleep, but how you feel, think, and function across every hour of the day. When that clock falls out of alignment with your external world, the consequences ripple far beyond fatigue. Mood, metabolism, concentration, immune function, and even long-term health are all affected.
This book helps you understand exactly what is happening inside your body, and more importantly, what you can do about it.
You'll learn how to identify your personal chronotype - whether you're biologically wired as an early riser, a late sleeper, or somewhere in between - and why fighting your natural timing often makes things worse. You'll find clear explanations of the most common circadian rhythm disorders, including Delayed Sleep Phase Disorder, Advanced Sleep Phase Disorder, Non-24-Hour Sleep-Wake Disorder, and shift work disorder, along with the tools to recognize which pattern may apply to you.
From there, the book moves into practical action. You'll build a personalised sleep and energy log to map your rhythms with clarity. You'll learn how to use light - the most powerful external signal your clock responds to - strategically and precisely, including guidance on morning light exposure, evening light reduction, and therapeutic light therapy devices. You'll explore how meal timing, exercise, temperature, and social cues can be leveraged to reinforce your desired sleep window. And you'll find step-by-step behavioral protocols, including structured sleep scheduling and gradual phase shifting techniques, that are grounded in the same science used in sleep medicine clinics.
Written in an instructional, accessible style that assumes no prior medical knowledge, Reset Your Clock is designed for real people with real schedules - shift workers, frequent travelers, students, new parents, remote workers whose days have lost their structure, and anyone who has quietly suspected that their sleep problem runs deeper than stress or screen time.
This is not a book about sleeping more. It's a book about sleeping right - at the right time, in rhythm with your biology, and in better alignment with the life you want to live.
If you're ready to stop fighting your clock and start working with it, this is where you begin.
