What Are the Clinical Implications?
CVD, HEART

Self‐reported sleep duration may not fully reflect people's sleep duration.Objective sleep monitoring is necessary and important to identify the real sleep duration and fluctuations.Sleep is a complicated set of brain processes that plays a pivotal role in maintaining mental and physical health.Accumulating evidence indicates that sleep duration is strongly associated with mortality; however, most studies have focused on the effects of self‐reported sleep duration.To our knowledge, there is little evidence comparing the different characteristics of self‐reported and objective sleep duration on all‐cause and CVD mortality in the general population. The present study was designed to investigate the role of objective and self‐reported sleep duration in all‐cause and CVD mortality based on a community‐based population from the decade‐long SHHS (Sleep Heart Health Study).