An employee health nurse is providing teaching about sleep promotion to a group of newly licensed nurses. Which of the following statements should the nurse include?

"Taking a cool shower before bedtime can help with sleep."

"Go to bed when you are tired and if you are restless while attempting to go to sleep, go to another room and listen to soft music."

"To promote nighttime sleep, limit daytime naps to 1 hour."

"Exercising 1 hour before bedtime can help promote relaxation and sleep."