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Obstructive sleep apnea (OSA), a frequent form of sleep disordered breathing (SDB), is associated with commonly occurring cardiovascular disorders, including hypertension, coronary artery disease, congestive heart failure. Central sleep apnea (CSA) is frequently associated with congestive heart failure (CHF). Cheyne Stokes respiration (CSR), a form of periodic breathing, commonly accompanies CSA patients with heart failure and portends increased mortality. This chapter explores these and other associations between sleep disorders and cardiovascular disease. SDB is highly prevalent in the elderly and the odds of having significant SDB are estimated at 1.79 per 10-year increase in age. The relation between insomnia and cardiovascular disorders has been less well examined than that between SDB and cardiovascular disorders, especially in the elderly. Large prospective studies will be needed to understand the association between insomnia complaints and coronary artery disease (CAD), and determine the direction of causality, if any.