Mixed
Multi-component non-pharmacological sleep therapy (including cognitive behavioral therapy, sleep restriction, bright-light therapy, and body temperature manipulation) reverses the neurocognitive vigilance deficits associated with chronic primary insomnia, normalizing reaction time profiles to match healthy controls.
If you suffer from chronic insomnia, cognitive behavioral sleep therapy combined with sleep restriction, bright light exposure, and body temperature manipulation can reverse the brain fog and vigilance deficits associated with the condition. This multi-component approach, delivered over 6 weeks, normalizes cognitive performance to levels seen in healthy sleepers, suggesting that insomnia-related cognitive issues are treatable and not permanent.
Sleep therapy effectively restored normal performance: patients became significantly slower on the 'simple' task and faster on the 'complex' task, returning to the performance levels of control subjects.
Why this rating
Randomized controlled design with waiting-list control, objective polysomnography, and rigorous neuropsychological testing, though sample size is modest (n=25 patients).
Source
Sleep loss affects vigilance: effects of chronic insomnia and sleep therapy
Ellemarije Altena et al. · Journal of Sleep Research · 2008
DOI 10.1111/j.1365-2869.2008.00671.x
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