YOU CAN'T CHEAT SLEEP, BUT YOU CAN MASTER IT. Most of us treat sleep as an afterthought--the first thing to give when life gets busy. But that decision costs you more than you realise. Poor sleep shows up everywhere: in your focus, your mood, your performance, your relationships, your health. In Sleep First, Dr Jemma King, leading behavioural scientist and sleep researcher, reveals what happens in your body and brain every night--and why getting sleep right can transform your days. You'll learn why your brain needs to clean itself, why you keep waking at 3 am, how coffee doesn't actually give you energy and how your weight is influenced by your sleep. You'll also build your Sleep First Formula: a personalised system grounded in your own biology, schedule and barriers to sleep. With Sleep First, you'll: find solutions to common sleep problems navigate shift work, jet lag, stress, parenthood and a demanding schedule learn how caffeine, alcohol, screens and late meals affect your sleep quality discover how elite athletes maximise rest for peak performance pinpoint your personal sleep disruptors and track your progress. Whether you want to perform at your peak or protect your long term health, your sleep is where it starts. 'Jemma completely transformed my understanding of how sleep impacts my performance and everyday life. After reading Sleep First you'll understand why your success depends on it.'EMMA MCKEON AM, most decorated Australian female Olympic swimmer