A nurse is reinforcing teaching with a client on measures to promote their sleep. Which of the following instructions should the nurse include in the teaching?

A. Discontinue use of electronics 30 min before bedtime: The use of electronics before bedtime can disrupt the body's natural sleep cycle by suppressing melatonin production. Stopping electronic use at least 30 minutes before bed promotes relaxation and better sleep quality. B. Drink a cup of coffee 1 hr before bedtime: Caffeine is a stimulant that can interfere with falling asleep and maintaining deep sleep. Consuming coffee close to bedtime would likely worsen sleep disturbances rather than help. C. Consume a meal 1 hr before bedtime: Eating a large meal close to bedtime can cause discomfort, indigestion, and difficulty falling asleep. Light snacks are acceptable, but heavy meals should be avoided before sleeping. D. Exercise 1 hr before bedtime: Vigorous exercise shortly before bedtime can increase adrenaline and body temperature, making it harder to fall asleep. Exercise is better scheduled earlier in the day to support restful sleep.