Sleep is an essential component in health and the quality of life of individual. Normally, sleep pattern changes with advancing age. These changes often result in sleep impairment and become a major stressor in adult. Sleep problems are not rare among healthy adults. Even though sleep impairment among adults has been well documented in western countries, few studies have been conducted related to the sleep in Korea. The purpose of this study is to explore sleep pattern, related factors, and sleep satisfaction among healthy community-dwelling adults, so that basic informations regarding adult`s sleep can be established. 409 subjects over 20-year-old were participated in the study. The survey questionnaire was developed by translation and modification of two well-known sleep questionnaires which originally developed by Monroe(1967) and Ellis, et al. (1982). Pilot study was completed for final contents of a questionnaire. SPSS/PC＋ was utilized for data analysis, results are as follows: 1. Sleep complaints were reported by 27.9% of the subjects. 2. Most of the subjects reported to go bed between 9-11pm. and get up between 4-6am. 3. Regarding sleep-disturbing factors, physical factor(21.8%), emotional factor(42.7%), environmental factor(48.4%) were reported. 4. 21.3% of the subjects practiced some type of strategies for better sleep. But a few(6.5%) used hyphotics mainly in occasional base. 5. Variables showed statistically significant difference in sleep satisfaction were : getting up right away upon waking : frequency of awakening during night time sleep : difficulty in falling asleep ; feeling rested upon waking in the morning : difficulty in going back to sleep after awakening during night time sleep. 6. Feeling rested upon waking at morning and difficulties of going back to sleep during night sleep explained sleep satisfaction with 31% explanation power. From the results of this study, it can be concluded that the adults in the community do have some sleep impairment but do not practice adequate strategies for better sleep. Further researches are needed to develop better sleep measurement tool to identify sleep pattern of clints and to develop and evaluate nursing intervention.