As long as the people stay at home because of the Covid 19 outbreak, the investigators assume that the sleep quality of OUAS patients, like everyone else, and the sleep quality of COVID-19 outbreak are reduced due to anxiety and anxiety in people. In addition, we assume that sleep quality and physical activity level are related to health literacy level and fear of movement (kinesiophobia). In this study; the investigators aimed to determine how patients are affected by this process by evaluating sleep quality, physical activity, fear of movement and health literacy in OSAS patients during our stay in the COVID-19 outbreak.

Research Ahi Evren Chest Cardiovascular Surgery Training Research Hospital will be performed in patients between the ages of 18-70 years, diagnosed with OSAS in the sleep laboratory. Sleep quality, physical activity, fear of movement and health literacy will be evaluated in OSAS patients. Evaluations will be made by phone In order for the study to be strong, it will be tried to reach the maximum patient that can be taken between June 2020 and October 2020.

Inclusion Criteria:

1. Having been diagnosed with OSAS and disease severity determined,
2. Being between the age of 19-70,
3. Body mass index <40 kg / m2
4. Volunteering to participate in the research,
5. Not having a mental problem that will hinder the cooperation.

Exclusion Criteria:

1. To have advanced orthopedic, neurological and cardiovascular disease,
2. Having a cognitive problem,

Patients and healthy individuals between 18-70 years old, who are diagnosed with OSAS in the sleep lab at the Ahi Evren Chest, Heart and Vascular Surgery Training and Research Hospital, and whose local language is Turkish will be included in the study.