Sleeping is a major component of health, and sleep disorders increase the risk of major diseases, including cardiovascular disease. 1) A previous study reported associations between sleep disorder and heart failure, coronary heart disease, and irritable bowel syndrome. 2) Sleep problems are well known to affect the quality of life, 3) including poor response to health that indicates a decrease in subjective health perception. Furthermore, sleep disorders, including insomnia, daytime sleepiness, 4) short sleep duration, and long sleep duration, 5) are associated with decreases in subjective health perception. Sleep quality is also associated with decreased quality of life, including subjective health perception. 6) Subjective health perception involves recognizing one's health status; this information can then be used to assess an individual's general health status. 7) In addition, regardless of the actual state of health, if the subjective health perception is poor, the level of daily Background: Sleeping is a major component of health. The prevalence of sleep disorders is expected to be high in older adults, and sleep habits generally differ on weekdays and weekends. This study aimed to clarify the associations between sleep habits and the subjective health status of older adults. Methods: This study analyzed data of 1,678 older adults (695 men and 883 women) aged 65 years or older who had participated in the 2016 Korea National Health and Nutrition Examination Survey (KNHANES VII-1) conducted by the Korea Centers for Disease Control and Prevention. The participants' subjective health perceptions were analyzed according to their sleep habits. Results: Weekday and weekend sleep durations were related to subjective health in older men (p<0.05) but not in women. The subjective health perception was significantly better for a 9-hour sleep duration than for a 7-hour sleep duration in older men. Sleeping and waking times on weekdays and weekends were not related to the subjective health of either men or women. Conclusion: Weekday and weekend sleep durations were related to subjective health perception in older men.