Reference: 663 Title: Sleep and COVID: Sleep-Related Symptoms and Vaccine Side Effects Summary: COVID-19 vaccines may cause temporary sleep-related side effects like excessive daytime sleepiness and prolonged sleep durations due to immune response. URL: https://www.healio.com/news/neurology/20230117/sleep-and-covid-sleeprelated-symptoms-transient-vaccinerelated-side-effects-and-more