Introduction / C. M. Shapiro and A. McCall Smith -- 1. An Overview of Sleep Physiology and Sleep Disorders / E. P. Sloan and C. M. Shapiro -- 2. Sleep Disorders and the Criminal Law / A. McCall Smith and C. M. Shapiro -- 3. Dangerous Behaviours by Night / R. J. Broughton and T. Shimizu -- 4. A Case-Controlled Study of Men who Sexually Assault Sleeping Victims / J. P. Fedoroff, A. Brunet and V. Woods [et al.] -- 5. Civil Liability Issues Arising out of Sleep Deprivation and Sleep Disorders / D. W. Shuman -- 6. Regulations for Driving for Patients with Sleep Disorders / A. I. Pack, S. J. Pakola and L. J. Findley -- 7. Chronobiologic and Medical Aspects of Alertness / M. M. Mitler and J. S. Poceta -- 8. Pharmacological Aspects of Drowsiness / J. A. E. Fleming