(2021) Heather Darwall-Smith’s message in this ebook is simple: don’t panic! Humans are biologically programmed to sleep, and by interrogating all the factors – sociological, physiological, neurological, and psychological – that might be impeding this innate instinct, each of us can work out the changes we can make in our own lifestyles to allow ourselves to sleep naturally again. Understand and transform your sleep habits, one night at a time.