Poor sleep may partially explain the association between depressive symptoms and death from cardiovascular causes, research indicates.

The study showed that depressive symptoms were associated with a significant 67% increased risk for cardiovascular mortality after taking into account sociodemographic variables, but significance was lost when sleep variables were also considered.

https://www.medwirenews.com/47/104791/Psychiatry/Sleep_role_in_depression-related_death_risk.html