Play.com (UK) : I Can Make You Sleep : Books - Free Delivery
Paul McKenna has made a 20 year study of tackling insomnia. He has developed a unique, easy system that everyone can use to improve the quality of their sleep. In this book he shows you how easy exercise and simple changes in your thinking and behaviour can have a significant impact on your sleep.
A couple of personal reviews saying although they were sceptical it seems to be practical and has helped one of the people sleep much better already.
Common sense and useful.