How Often Should You Wash Your Sheets?

Most people know their sheets need washing — but few actually do it as often as they should. Surveys consistently show that the average American washes their bed sheets just once or twice a month. Experts say that's not nearly enough.

The short answer: every one to two weeks

The general consensus among dermatologists and sleep specialists is that bed sheets should be washed every seven to fourteen days. If you sleep with a partner, have pets in bed, sweat heavily, or deal with allergies, the recommendation moves closer to once a week.

What builds up on unwashed sheets

• Dead skin cells — shed continuously while you sleep
• Sweat and body oils — which break down fabric fibers over time
• Dust mites — microscopic organisms that feed on skin cells
• Pet dander — if your pet shares the bed
• Bacteria — which can cause skin irritation and breakouts

Pillowcases deserve special attention

Your pillowcase is in direct contact with your face for six to eight hours a night. That means skin oils, hair products, and bacteria transfer directly onto it. If you're prone to breakouts or skin irritation, washing your pillowcase every three to four days is a reasonable habit. Dermatologists often recommend this as a first step before any skincare routine changes.

Water temperature and fabric care

Hot water (above 130°F / 54°C) kills dust mites most effectively. For cotton and linen sheets, this is generally safe. However, if your sheets are a delicate blend — bamboo, silk, or microfiber — check the label. Many of these fabrics require a warm or cool gentle cycle to avoid damage.

Regardless of temperature, always tumble dry on a medium heat setting or line dry to reduce wear. Over-drying is one of the fastest ways to shorten sheet lifespan.

A practical weekly schedule

The easiest way to stay on top of laundry is to attach it to an existing routine. Pick the same day each week — Sunday evenings work well for many people — strip the bed while making coffee, and restart the cycle. If that still feels like too much, a laundry pickup service handles the whole process for you.