Efficacy of Cognitive Behavioral Therapy for Insomnia to Treat Insomnia Symptoms in Individuals With Multiple Sclerosis

Inclusion Criteria: * 18-65 years old * Diagnosis of relapsing-remitting or secondary progressive MS based on established guidelines20 and verified by their neurologist * Mild-to-moderately severe disability (≤ 6 on Patient Determined Disability Steps (PDDS) scale) * Report of difficulty falling asleep, maintaining sleep, or waking up too early at least 3 nights/week for the past 3 months with significant distress and impact on function despite adequate opportunity for sleep and not due to other sleep disorders as indicated in the DSM-5 * ≥10 on Insomnia Severity Index * English speaking * ≥31 on modified Telephone Interview of Cognitive Status23 * Has a high school diploma or equivalent to serve as a proxy measurement of reading ability to ensure adequate reading ability to participate in the study * Report having access to internet service or a data plan and access to a computer, tablet, or smart phone Exclusion Criteria: * Known untreated sleep disorder (such as sleep apnea or restless legs syndrome) * \>3 on STOP BANG indicating increased risk of sleep apnea * Restless legs syndrome as determined by RLS-Diagnosis Index * Circadian rhythm sleep-wake disorder as determined by the Sleep Disorders-Revised * Parasomnia as determined by the Sleep Disorders-Revised * Currently taking benzodiazepines, non-benzodiazepines, or melatonin supplements or agonists for insomnia * Score of ≥20 on the Patient Health Questionnaire (PHQ-9) indicating severe depression or endorsement of s…