The purpose of this study is to understand whether Black participants with insomnia with objective short-sleep (ISSD) experience less symptom improvement in response to Cognitive Behavioral Therapy for Insomnia (CBTi) than Insomnia with Normal Sleep Duration (INSD) and whether this difference is driven by downstream racism-related stress and experiences. The investigators propose an innovative pragmatic open-label design in which Black participants with insomnia undergo a standard 6-week protocol of digital CBTi. The investigators will quantify ISSD using wireless EEG and will gather high-resolution naturalistic data of racism-related stress using random smartphone prompts and Ecological Momentary Assessments (EMA).
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
OTHER
Masking
NONE
Enrollment
100
Participants will be treated with a well validated digital Cognitive Behavioral Therapy for Insomnia (CBTi) program called Sleepio, over 6-10 weeks. The digital Cognitive Behavioral Therapy for Insomnia (dCBTi) is delivered on a mobile app or webpage that follows standard CBTi protocols. It is supported by evidence showing improvements in insomnia and depressive symptoms, as well as non-inferiority compared with face-to-face CBTi, amongst large (total\>10,000ppts), diverse populations. Sleepio is the first-line intervention for insomnia in the United Kingdom National Health Service.
Insomnia Severity Index (ISI Severity)
The Insomnia Severity Index (ISI) defines insomnia severity by how high the score is. Participants rate each item on the questionnaire using Likert-type scales. Each of the responses can range from 0 to 4, where higher scores indicate more acute symptoms of insomnia. A total score of 0-7 indicates "no clinically significant insomnia," 8-14 means "subthreshold insomnia," 15-21 is "clinical insomnia (moderate severity)," and 22-28 means "clinical insomnia (severe)".
Time frame: 5 weeks, 10 weeks, and 16 weeks
Depressive Symptoms
Depressive symptoms defined by the Patient Health Questionnaire (PHQ-9). Score range 0 to 27, with higher scores indicating greater severity. Scores are categorized as 0-4 (None-Minimal), 5-9 (Mild), 10-14 (Moderate), 15-19 (Moderately Severe), and 20-27 (Severe).
Time frame: 5, 10, and 16 weeks
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