It is always interesting to read a book about sleep, something we spend almost a third of our lives doing, yet scientists can't actually tell us why we do it, just that it is important. In fact reading this book scares you with all the problems that can be linked to getting less than 8 hours per night - something I struggle with each night.
There were lots of interesting bits about various studies looking into different aspects of sleep, how we dream, sleep deprivation, sleep at various stages of life and how not sleeping can even lead to an early death. I do find this type of non fiction can often send me to sleep too - so that is quite helpful. 3/5
