What are the long-term cardiac effects of chronic insomnia and constantly disrupted sleep patterns?

Bad: While sleep deprivation causes increased risks of heart attack, stroke, and maybe cancer, the most obvious effects are usually psychological. It's sometimes hard to tell what is the chicken and what is the egg. A common cause of sleep problems is psychiatric disease. It clearly will shorten your life expectancy unless corrected. You should get professional help.

Insomnia: Chronic insomnia especially due to osa can surely increase cardiac morbidity and mortality.