A nurse is providing education to a client who has insomnia. Which of the following is appropriate advice by the nurse?

A. Taking a warm bath before bedtime can promote relaxation, lower core body temperature afterward, and signal the body that it is time to sleep. This is a safe and effective non-pharmacologic intervention for improving sleep quality in clients with insomnia. B. Going to bed earlier than the body’s natural sleep-wake rhythm can lead to difficulty falling asleep and increased sleep latency. It is better to maintain a consistent sleep schedule aligned with the individual’s natural circadian rhythm. C. Although alcohol may initially induce sleepiness, it disrupts sleep architecture, reduces REM sleep, and can cause early awakening. Using alcohol as a sleep aid is not recommended and can worsen insomnia over time.