The primary aim of this study is to investigate the feasibility, acceptability, and preliminary efficacy of an adapted Cognitive Behavioral Therapy - Insomnia (CBT-I) intervention in improving sleep in a firefighter population.
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Change in Scores on the Pittsburgh Sleep Quality Index (PSQI)
Timeframe: Baseline (i.e., pre-intervention), 6 weeks (i.e., post-intervention), 18 weeks (i.e., 3-month follow-up)
Total Sleep Time Change as Measured by Actigraphy in the Fitbit Inspire HR
Timeframe: Baseline (i.e., pre-intervention), 6 weeks (i.e., post-intervention)
Feasibility as measured by attendance, attrition, and adherence to intervention components.
Timeframe: From intervention Week 1 to intervention Week 6
Acceptability as measured by mean acceptability ratings on four Likert-style questions.
Timeframe: 6 weeks (i.e., post-intervention)