In 1979, researchers from Guy's Hospital Medical School in London studied 18 patients who had suffered from insomnia for at least 3 months. They concluded that patients slept significantly longer with hypnosis alone than when they received a placebo. Also, significantly more patients had a normal night’s sleep when using self-hypnosis alone than when they received a placebo or Mogadon/Nitrazepam – a benzodiazepine drug.
In 1989, a Ph.D. from the University of Tasmania, Australia studied 45 subjects randomly assigned to one of three groups: hypnotic relaxation; stimulus control; and placebo. The data generated by the study suggested that only hypnosis was effective in helping the subjects go to sleep more quickly.
In 2006, researchers from the State University of New York Upstate Medical University studied 84 children and adolescents with sleep issues (such as insomnia, a delay in sleep onset, nighttime awakenings, and issues like pain that impedes sleep) who did hypnosis sessions and were taught self-hypnosis. 87% of the children reported that hypnosis had helped them either significantly improve or completely resolve their sleep problems.
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