Don't go to bed too early Your body usually lets you sleep only the number of hours it needs You should decide how many hours you must sleep in order not to experience daytime sleepinessTake a warm shower before your bedtimeA twenty-minute warm shower at a temperature of about 45-50 not only is great relaxation at day's end ,but also raises your body temperature by several degrees The coming drop in temperature of your body will naturally make you feel sleepy