For most households, washing sheets once a week strikes a practical balance between cleanliness and convenience. Consider every three to four days if you sweat heavily, sleep with pets, eat in bed, have allergies or asthma, manage eczema, or are recovering from illness. Pillowcases deserve attention every three to seven days, especially with oily skin or allergies. These routines help remove accumulated grime and allergens without turning bedtime comfort into an overwhelming chore.
The rest of your bedding matters, too. Wash blankets every two to four weeks, duvet covers every one to two weeks, and covered comforters every two to three months. Washable pillows generally need cleaning every four to six months; mattress protectors, every one to two months or sooner after spills. Between washes, shower before bed, remove makeup, skip bedroom snacks, and briefly air the bed. Follow care labels and dry everything completely before settling into fresh bedding.