Over 60,000 copies sold of the first edition of this book on insomnia. Revised edition features information on new drugs and treatments, including herbs, amino acids, tryptophan and melatonin. Dr. Peter Hauri developed his easy-to-use approach at the Mayo Clinic. Hauri shows readers how they can become their own sleep therapists as he explores such root causes for insomnia as diet, environment, stress, smoking and drinking.