A randomized controlled trial of intensive sleep retraining (ISR): a brief conditioning treatment for chronic insomnia.

Study Objective: To investigate the effectiveness of intensive sleep retraining in comparison and combination with traditional behavioral intervention for chronic primary insomnia.

Participants: Seventy-nine volunteers with chronic sleep-onset insomnia (with or without sleep maintenance difficulties) were randomly assigned either to intensive sleep retraining (ISR), stimulus control therapy (SCT), ISR plus SCT, or the control (sleep hygiene) treatment condition.

Intervention: ISR treatment consisted of 50 sleep onset trials over a 25-h sleep deprivation period.

The treatment of early-morning awakening insomnia with 2 evenings of bright light.

Study Objective: To assess the effectiveness of brief bright-light therapy for the treatment of early-morning awakening insomnia.

Participants: Twenty-four healthy adults with early-morning awakening insomnia were assigned to either the bright-light condition (2,500-lux white light) or the control (dim red light) condition.

Measurements And Results: The circadian phase of rectal temperature and urinary melatonin rhythms were assessed with 26-hour constant routines before and after 2 evenings of light therapy.