Audio-visual Stimulation: Sleep Dose Response

Inclusion Criteria: * Age 60+ with insomnia and nonmalignant OA pain most days * Insomnia Severity Index (ISI): \>= 12 * Sleep problems \>=3 times per week for \>=6 months * Brief Pain Inventory (BPI): average pain \>=4 and \< 10 * Osteoarthritis pain for \>=6 months; * Blessed Telephone Information-Memory-Concentration Test (TIMC) \< 7 * Presence of sleep onset complaint (latency \>30 minutes on PSQI OR ISI sub-scales); may also have sleep maintenance or early morning awakening complaints Exclusion Criteria: * Seizure disorder * Migraine * Photosensitivity * Prior diagnosis of a primary sleep disorder * Sleep apnea with an AHI/RDI score \>=5 or current use of a CPAP machine * Periodic leg movement disorder * Restless leg syndrome * Rapid eye movement behavior disorder * Sleep-wake cycle disturbance * Unusual sleep schedule (i.e. shift worker) * 400 mg daily caffeine intake (4 cups of 8 oz brewed coffee/tea) * 3 or more alcoholic drinks/day * Diagnosis of: rheumatoid arthritis * Terminal disease, pending major surgery * Active chemotherapy or radiation for cancer * Inpatient treatment for congestive heart failure within the previous 6 months * Dementia diagnosis * Use of acetylcholinesterase inhibitor and/or memantine for cognitive impairmen * Use of psychoactive medications (stimulants, sedative hypnotics, anxiolytics, antipsychotics) or recreational drugs including marijuana.