Dilated cardiomyopathy causing insomnia needs to be treated based on the cause of the insomnia.

First, if it is simply poor sleep quality causing occasional insomnia, no special treatment is needed. However, if insomnia occurs daily and affects quality of life, sleep-improving medications such as eszopiclone or zopiclone may be taken under a doctor's guidance. Second, if caused by worsening heart failure symptoms, which lead to nocturnal respiratory distress and affect sleep, resulting in insomnia, the treatment for heart failure should be intensified under a doctor's guidance, for instance, by increasing diuretic treatment or adjusting medications. Improving heart failure symptoms naturally enhances sleep quality.

(If medication is required, please do so under the guidance of a doctor)