This research was designed as a descriptive study to determine the effect of university students' fear of COVID-19 on sleep quality. The universe of the study consisted of students studying in associate degree and undergraduate programs of various private and public universities in Turkey, and the sample consisted of 450 students who were allowed to participate in the research and met the sampling criteria. The data of the study were collected from “Individual Characteristics Diagnostic Form”, “Corona Virus 19 Phobia (CP19-S) Scale” and “Pittsburgh Sleep Quality Index (PSQI)”. Data were analyzed using SPSS (Statistical Package for Social Sciences) for Windows 22.0 program, using frequency and independent groups t test. The significance value was accepted as p<0.05. 61.6% of the students stated that they slept 6-8 hours a day during the pandemic and 35.3% did not feel rested when they woke up. A significant correlation was found between the Corona Virus 19 Phobia (CP19-S) Scale and Pittsburgh Sleep Quality Index scores of the participants. The CP19-S scale with the psychological sub-neck's overall sleep quality score 26.6%, the social sub-dimension 29.7%, the CP19-S scale somatic sub-neck sleep disorder 35.8%, the CP19- S scale economic sub-neck sleep disorder There is a positive and significant correlation at the level of 27.3%. It has been determined that the COVID-19 pandemic has a negative effect on the sleep quality, latency, duration and sleep disorder of university students. It is recommended to develop mechanisms to cope with the COVID -19 pandemic, to increase and expand individual and community psychosocial support programs.