Kirk Douglas the American Academy of Dramatic Arts in New York City, which gave him a special scholarship. One of his classmates was Betty Joan Perske (later known as Lauren Bacall), who would play an important role in launching his film career. Bacall wrote that she "had a wild crush on Kirk," and they dated casually. Another classmate, and a friend of Bacall's, was aspiring actress Diana Dill, who would later become Douglas's first wife. During their time together, Bacall learned Douglas had no money, and that he once spent the night in jail since he had no place to sleep. She
Biphasic and polyphasic sleep one solid block, and he expresses concern that the ways in which the polyphasic sleepers' attempt to limit total sleep time, restrict time spent in the various stages of the sleep cycle, and disrupt their circadian rhythms, will eventually cause them to suffer the same negative effects as those with other forms of sleep deprivation and circadian rhythm sleep disorder. Woźniak further claims to have scanned the blogs of polyphasic sleepers and found that they have to choose an "engaging activity" again and again just to stay awake and that polyphasic sleep does not improve one's learning ability or creativity.