The coronavirus has us all thinking about hygiene more than ever. Handwashing, mask washing and bedding, too. Everything you’re exposed to during the day goes into the bed with you, from pollen and pet dander to bacterial and viral particles. Add dead skin cells, sweat, makeup, lotions. It’s a best-practice habit to change your bedding once a week, more often if there’s sweaty or oil skin. The American Academy of Dermatology also recommends changing pillow cases two or three times a week. With a pandemic, there’s risk of viral particles becoming trapped within bedding fabric. Follow very specific CDC guidelines if a household member has tested positive for coronavirus.