An eye-opening and engrossing exploration into the science and mysteries of sleep and sleeplessness from the bestselling author of iThe Intelligence of Dogsi. pIs there some way to determine if you are getting enough sleep pDo dogs and cats dream pWhat are the ways to help children sleep through the night pWhat role did sleep deficit play in the loss of the space shuttle Challenger and the nuclear accidents at Chernobyl and Three Mile Island pWhy is the shift to Daylight Savings Time dangerous pWhy do many sleeping medications actually make insomnia worse pWhat was Leonardo da Vinci's technique for getting by with only an hour and a half of sleep each day pThe answers to these questions are in this fascinating and provocative book that will change the way you think about sleep.