Inclusion Criteria:  Inclusion criteria for patients  Have a diagnosis of AD (probable or possible) or other related dementia as documented in electronic medical record Community-dwelling Have >1 sleep problem >3x/week on the Neuropsychiatric Inventory Nighttime Behavior Scale Aged >60 years Have no previously diagnosed sleep disorders (e.g., sleep apnea, restless legs syndrome) Able to ambulate with or without assistive devices (i.e., dyads will be excluded if the care recipient is bedbound) Have an eligible caregiver  Inclusion criteria for caregivers  Aged >18 years Live with the care recipient who has AD or other type(s) of dementia Have regularly assisted the care recipient with >1 of 7 basic activities of daily living (ADLs; i.e., eating, dressing/undressing, grooming, walking across a room, getting in and out of bed, bathing, toileting) or >1 of 7 Instrumental ADL (IADLs; i.e., using the telephone, getting to places beyond walking distance, shopping, preparing meals, doing housework, taking medicine, handling money) for the past 6 months Have a score ≥5 on the Patient Health Questionnaire (PHQ)-9 for the past 2 weeks Have a score ≥19 on the telephone version of the Montreal Cognitive Assessment (MoCA) Can communicate in English.  Exclusion Criteria:  -Professional caregivers will be excluded. Patients will be excluded if they are bedbound. If the eligibility criteria for either a patient or a caregiver are not met, their dyads will be excluded for this study