Sleep Disorders | Why do we struggle to sleep well?

LONDON - A good night's sleep is essential for good health and well-being. So why do so many of us struggle to sleep well?

READ: Technology is radically changing sleep as we know it

Dr Michael Mosley has taken part in numerous sleep experiments and tested almost every remedy.

WATCH: Opening your eyes to sleep disorders

Dr Mosley talks about his latest book - 4 Weeks to Better Sleep. The book promises the tools you need to sleep better, reduce stress and feel happier.