Final answer:
To help a patient with mania sleep better, the nurse can instruct the patient to perform slow exercises, avoid providing tea or coffee before sleep, and help the patient perform intense physical activity during the day.
Step-by-step explanation:
There are several actions a nurse can take to help a patient with mania sleep better. Firstly, the nurse can instruct the patient to perform slow exercises before bedtime, such as stretching or deep breathing, as these can promote relaxation. Secondly, the nurse should avoid providing tea or coffee before sleep, as these beverages contain caffeine which can interfere with sleep. Lastly, it would be beneficial for the nurse to help the patient perform intense physical activity during the day, as this can help tire the patient out and improve their ability to sleep at night.