A physiology of the ""natural tranquilizer"" is by no means as chatty as Phyllis Rosenteur's Morpheus and Me (Funk & Wagnalls-1957) but concentrates on the scientific findings- advocates ""calming thoughts as well as relaxing muscles"" as the best means of securing a good night's rest. (Barbiturates never cure sleeplessness and invite the danger of drug addiction.) The cycles of sleep (broken sleep; naps; morning tiredness; etc.) how to sleep and the most restful positions; the thoughts before you go to sleep, sensations during it; waking up and staying awake- all this is part of the pattern of this latent phase of our existence, and anxiety is indicated as the greatest obstacle in the way of sound sleeping habits. The high incidence of insomniacs might suggest a wide-awake market.