Limitations
mood disturbances, daytime impairments, insomnia, fatigue
REMISSION
Some of the findings need to be interpreted cautiously given some methodological limitations. First, the lack of a control condition and the relatively small sample sizes for each treatment sequence may reduce the statistical power to detect more significant group differences. Second, only patients whose insomnia did not remit received second-stage therapy, while patients with insomnia who achieve remission can still have residual daytime impairments (eg, fatigue and mood disturbances) that are associated with future relapse