"You are completely relaxed... you feel warm and comfortable … you feel you really need to close your eyes and sleep... your eyelids are getting heavy... heavier... and heavier... slowly, you close them... now they are closed... you are getting sleepier.... and sleepier.... you are going to SLEEP...... deeper and deeper asleep... SLEEP!"Many of us are familiar with this scene: A bizarre-looking man holds a clock pendant and continuously, determinedly swings it in front of a vulnerable, lost-looking young woman. He utters the phrase repeatedly, in slower and lower intonation: “You’re getting sleepy… You’re getting sleepy…” The girl stares blankly into the clock. The world turns and swirls around her, spiraling and spiraling. Then eventually, she starts to act like (a) a zombie, (b) a vamp, (c) a chicken, or (d) all of the above simultaneously.