sleeping when I want where I want method 1

This book is defined as a sleeping method to use to learn to sleep when you want where you want. It consists of small exercises to practice that, once combined, allow you to fall asleep. When you wake up, you only remember one thing: you were putting the method into practice ... It has been developed during the last twenty years by the author during his life as a journalist, writer and father of three children. A short and effective work that does not sleep with boredom