Final answer:
The most effective approach to improving sleep for an older adult client is to go to bed at a consistent time, as it helps to synchronize the body's internal clock, despite not feeling sleepy (option D). Avoiding alcohol and over-the-counter sleep aids can prevent sleep disruptions and dependency.
Step-by-step explanation:
In answering the question "Which of the following may improve the sleep of an older adult client?" the best option for promoting healthy sleep habits is D. Going to bed at a consistent time even if not feeling sleepy. This aligns with sleep hygiene principles that advocate for a regular sleep schedule, which can help regulate the body's clock and facilitate more consistent and restful sleep over time.
Contrarily, A. Drinking an alcoholic beverage before bedtime can disrupt REM sleep and cause frequent awakenings. Utilizing B. An OTC sleeping agent may lead to dependence and alter the natural sleep cycle. Moreover, C. Eliminating naps during the day could be beneficial, as long naps or naps taken late in the day can interfere with nighttime sleep.
Hence, the answer is option D.