Decreasing Nightmares in Adults With Narcolepsy

The purpose of this clinical trial is learn whether a behavioral (non-medication) treatment can reduce nightmares in adults with narcolepsy. All participants will receive the treatment and will complete three assessments. Half of the participants will receive the treatment after the first assessment, and half will receive it after the second assessment. Romantic partners of participants with narcolepsy will also be eligible to enroll in the study. Partners will complete three assessments but will not participate in the treatment.

PARTICIPANTS WITH NARCOLEPSY/NIGHTMARES Inclusion Criteria: * Diagnosis of narcolepsy type 1 or narcolepsy type 2 * Nightmare frequency of ≥1 times per week * Age 18 or older * Able to speak, read, and write in English * Live in the United States * Sleep and psychiatric medications stable for ≥ 1 month and willing to keep medications stable for the duration of the study Exclusion Criteria: * Currently engaged in trauma- or sleep-related psychotherapy * Previous behavioral treatment for nightmares * Medical, psychiatric, or cognitive condition which would interfere with ability to engage in the treatment * Untreated moderate-severe sleep apnea PARTICIPANTS WHO ARE PARTNERS OF SOMEONE WITH NARCOLEPSY Inclusion Criteria: * Live with a romantic partner who meets the above criteria and has agreed to participate in the study * Age 18 or older * Able to speak, read, and write in English * Live in the United States