This book explains, in easy-to-understand terms, the numerous (and sometimes complicated) factors that influence sleep and wakefulness. Although sleep deprivation is so commonplace in our stress-filled society that it is taken for granted, "e;sleep debt"e; is actually very costly. This title will help readers regain the ability to sleep well and improve overall health. This book also provides a handy guide to selecting and purchasing natural sleep remedies and lists additional resources for finding sleep-related information and products.