Everyone sleeps and everyone dreams. Yet we are almost entirely unconscious of what is happening to us when we sleep and we forget almost all of our dreams. This third edition of a classic introduction to the subject provides a fascinating insight into this most universal of subjects, critically analysing recent research by psychologists and neuroscientists (much of which has been published in the last ten years) and reviewing historical and cultural beliefs about dreams. Sleep and Dreaming thus acts as both a comprehensive and a rigorous text for students and a rewarding and engaging introduction to the field for the interested lay reader. This new edition contains much new material, particularly on the physiology of sleep, and also a new chapter by Professor Michael Wang on the psychological treatment of insomnia.