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Researchers are forging ahead on both the psychological and physiological problems associated with sleep trouble. But most sleep doctors aren't trained in psychology, and most psychologists don't have the medical training to understand airway problems. And so sleep physicians prescribe biological treatments--Ambien to go to sleep, CPAPs to stay asleep, armodafinil to stay awake--and psychologists prescribe cognitive therapy to resolve the anxiety of going to bed, staying in bed and then facing the day. More-effective sleep treatments will combine both approaches, but right now the cure for insomnia is merely a dream.