A nurse in a long-term care facility notes that an older resident with dementia awakens frequently at night and is restless and agitated. Which of the following interventions most effective to help manage this resident's sleep problems?

A. Sedative-hypnotics are generally not recommended for older adults with dementia due to risks of increased confusion, falls, and adverse drug effects. B. While limiting fluids at night can help reduce nocturia, it does not address the core issues of agitation and sleep disruption related to dementia. C. Individuals with dementia often have limited capacity to understand or retain education, making this intervention ineffective for managing sleep issues. D. Passive music therapy is a non-pharmacologic, calming intervention shown to improve sleep and reduce agitation in individuals with dementia, making it the most effective and safest option in this context.