Epidemiology of insufficient sleep and poor sleep quality

Insufficient sleep duration and poor sleep quality have emerged as key behavioral risk factors for cardiometabolic disease risk, daytime functioning deficits, and other adverse outcomes, including mortality. Understanding the degree to which these exist in the population and how this prevalence differs based on demographic and other characteristics can provide context for the scope of the problem as it affects the population. Insufficient sleep is common, affecting about 1/3 of the general population. In addition, sleep complaints and symptoms - including nonrestorative sleep, difficulty initiating or maintaining sleep, daytime sleepiness, and snoring - are also common in the general population. Further, factors such as age, sex, race/ethnicity, and socioeconomic status can impact the prevalence of sleep problems.