Britain is one of the world’s most sleep-deprived countries. Humans should spend almost one third of their time asleep, but us Brits get nowhere near that. So, what is it that makes us a nation of insomniacs? And why aren’t we getting enough sleep?
Chronic insomniac Michael Mosley investigates what sleep is and what happens when we have too little of it, and helps test pioneering ways to get more.