How Often Should You Wash Your Sheets? The Simple Bedding Routine for Cleaner Sleep and Healthier Skin Every NightSheets collect sweat, body oils, dead skin, dust, and allergens while we sleep. For most people, washing sheets about once a week is a practical routine, although those who sweat heavily, sleep with pets, have allergies, or are recovering from illness may need to wash them more often. Pillowcases can benefit from washing every few days to once a week, especially for people with oily skin or allergies. Blankets and duvets usually need less frequent cleaning, while duvet covers should be washed more regularly because they are in direct contact with the body. Other bedding matters too. Washable pillows can generally be cleaned several times a year, mattress protectors should be washed regularly, and simple habits such as showering before bed, removing makeup, avoiding food in bed, and occasionally vacuuming the mattress can help keep everything fresher. Always follow the care instructions for each fabric and make sure bedding is completely dry before putting it back on the bed. For most households, weekly sheet washing provides a good balance between cleanliness, comfort, and convenience.