Based on data from the Central Statistics Agency in 2018, Indonesia is heading towards an Aging Population. The elderly experience many health problems due to decreased body function, both physical, physiological, and psychological. One of the psychological problems in the elderly is anxiety. Anxiety in the elderly can reduce concentration and alertness, increase health risks, and
damage the immune system, one of the symptoms of anxiety is difficulty sleeping. Difficulty sleeping will cause the elderly to lack sleep and can affect physical,cognitive, and quality of life. This study aims to determine the relationship between anxiety levels and sleep quality in the elderly at the Flamboyan Posyandu, Plalangan Village, Jenangan District, Ponorogo Regency.
The research method is using correlational research with a cross-sectional approach. The population in this study was some of the elderly at the Flamboyan Posyandu in Plalangan Village, Jenangan District, Ponorogo Regency, totaling 40
elderly people. The instrument used in this study was a questionnaire. Data analysis of this study used the Spearman Rank test.
The results of the study showed that most of the elderly who experienced moderate anxiety were 16 respondents (51.6%) and most of them experienced poor sleep quality, 18 respondents (58.1%). The results of the Spearman Rank test
showed that p-value = 0.000 <0.05, so this indicates that H0 is rejected, and H1 is accepted, which means that there is a relationship between anxiety levels and sleep quality in the elderly at the Flamboyan Posyandu, Plalangan Village, Jenangan District, Ponorogo Regency.
It can be concluded that the level of anxiety is closely related to the sleep quality of the elderly in Plalangan Village, Jenangan District, Ponorogo Regency, where there is a tendency for the elderly who have low levels of anxiety to have good sleep quality, and vice versa. It is expected that elderly people in old age do not think too much about problems in their lives so that they do not have high levels
of anxiety and can have good quality sleep

Keywords: Anxiety Level, Sleep Quality, Elderly