This is the first review I have written on Amazon, but I just wanted to express my sincere gratitude to Prof Espie for writing this book. I suffered for 12 years with ever worsening insomnia which ultimately led me to a nervous breakdown. I have tried quite literally everything, including seeing a very expensive Harley Street doctor. Within about 3 days of trying this programme I was sleeping through the night, and it has probably saved my life. My mood has improved and I am enjoying life again. If you have similar problems I urge you to follow Prof Espie's programme. It makes sense and works.