A nurse is teaching a client about sleep. Which of the following statements by the client indicates a need for further teaching?

A. This statement indicates a misunderstanding about sleep environment. A cooler bedroom, typically around 60–67°F (15–19°C), is recommended for optimal sleep because the body’s core temperature naturally drops during sleep. Raising the room temperature can disrupt sleep onset and reduce overall sleep quality. The client requires further education on maintaining a cool, comfortable sleeping environment. B. This statement is accurate. Adequate sleep enhances cognitive function, memory, concentration, mood, and motivation. Recognizing the positive impact of sleep on mental and physical performance demonstrates correct understanding. C. This statement is also correct. Adults generally require 7–9 hours of sleep per night to maintain optimal health, including physical restoration, cognitive function, and emotional well-being. The client’s statement aligns with current sleep recommendations.