Which sleep therapy works best for menopausal women? major study aims to find out

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age 40-62 years * Assigned female sex at birth * In peri- or early menopause, following the STRAW criteria of self-report of irregular menstrual cycle or within 5 years from the last menstrual period. When menstrual markers are absent or unreliable (e.g., hysterectomy; endometrial ablation), participants must be older than 45 years old and report hot flashes * Insomnia severity index score \> 10 at screening * Insomnia started or worsened during peri- or early menopause * English or Spanish speaking (Spanish-only speaking individuals will be recruited after full development of Spanish-facing materials, which may lag initial study start) Exclusion Criteria: * Untreated, previously diagnosed severe sleep apnea (self-report; chart review; clinician assessment) * Untreated, previously diagnosed moderate-severe restless legs syndrome (self-report; chart review) * Severe daytime sleepiness (Epworth Sleepiness Scale \> 15) at screening * Sleep schedule issues that would impact effectiveness of the interventions (e.g., night shift workers with \>1 night shift/week; main sleep period outside of 8pm - 11am) * Regular use of hypnotics \> 2 nights/week * Limited internet access * Pregnant or lactating or positive urine pregnancy test at baseline visit * Prolonged QTc interval (\>460 ms) (by study baseline electrocardiogram (EKG) or EKG report in medical record) * History of the following health conditions: Uncontrolled hypertension; clinically significant heart disease such as arrhythmias requiring medication, cardiomyopathies, heart failure, clinically significant valvular heart disease, or severe coronary artery disease (unstable angina, myocardial infarction in the prior 6 months); hypersomnia or narcolepsy; bipolar disorder, severe depression, or psychosis ; seizure within the past year; use of opioids or substance use disorder; known allergy or contraindication to trazodone or daridorexant (self-report and chart review); known severe chronic liver disease (e.g. cirrhosis); end-stage renal disease on hemodialysis; other severe medical comorbidity (e.g. likely hospitalization within next 6 months or medical conditions that increase risk of participation at a study clinician's discretion) * Use of medications such as those that: Have known potential for significantly prolonging the QT interval (i.e. antiarrhythmics such as amiodarone, sotalol, quinidine, procainamide, dofetilide, and ibutilide), are strong CYP3A4 inhibitors, or are moderate or strong CYP3A4 inducers * Use of one of the interventions in the past 6 months * Other conditions determined by the PI or study clinician to preclude study participation