Sleep by Ian Oswald
 
What is the nature of that mysterious condition, called sleep, in which we pass one third of our lives?
What part of the brain controls it? What happens when we give way to it? How much of it do we need? What takes place when we are deprived of it? Are their different kinds of sleep, and is it possible to learn while asleep?
 
And dreams... ? Do we dream at all hours? What is the explanation of dreams, and how quickly do we forget them? Do the blind see in their dreams?
 
And what, finally, are the newest findings about hypnosis and insomnia?
One of the most inexplicable rhythms of life is explained- as far as modern research can explain it - in this new Pelican, by a psychologist who has specialized in the study of sleep: