Background: Variable models of care have been adopted in different countries in response to the COVID-19 pandemic. Egypt has assigned certain hospitals specifically for the quarantine of COVID-19 patients, where operational medical teams work continuously for 14 days, after which they are released for self-isolation at home for a similar period. Aims: The study aimed to evaluate and compare perceived adverse psychological symptoms (stress, anxiety, depression), and insomnia by health-care professionals working in quarantine and non-quarantine hospitals during the COVID-19 pandemic in Egypt, and to explore associated factors with adverse psychological symptoms and insomnia. Methods: An online cross-sectional survey was performed in April 2020, using a snowball sampling method. Sociodemographic information perceived general health, healthy lifestyle, insomnia (using Insomnia Severity Index), adverse psychological symptoms (using the Depression, Anxiety and Stress Scale-21), worries and concerns about COVID-19, future perspective about COVID-19, and coping strategies were collected. Results: Five hundred and forty health-care professionals participated; 10.2% (n=55) worked in quarantine hospitals. Younger age (ORa=0.96, 95% CI:0.93-0.99, ORa=0.95; 95%