COVID-19 Prediction (IMAGE) Sleep Number Caption Sleep Number data presented at SLEEP 2021 showed COVID-19 symptom worsening is associated with a significant increase in sleep duration, respiration rate, heart rate, restful time, and motion, and a decrease in sleep quality. This symptom progression model was built to predict the probability of symptoms onset and duration. Some probability peaks predate the COVID-19 pandemic, suggesting that our model system can detect respiratory illnesses that are not caused by SARS-CoV-2, such as influenza. Credit Sleep Number Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.