You should change and wash your bed sheets about once a week. This frequency helps maintain hygiene by removing sweat, dead skin cells, oils, dust mites, and other allergens that accumulate on sheets from nightly use

. Key points supporting weekly sheet changes include:

• Sweat and dead skin cells build up in sheets, which can cause odors and create an environment for mites that may trigger skin irritation and allergies

• Washing sheets weekly helps keep your sleeping environment fresh and reduces exposure to germs and allergens

• If you have allergies, asthma, night sweats, or pets sleeping in your bed, washing sheets even more frequently (up to twice a week) is advisable

• While some people change sheets every two weeks, this is generally considered the maximum interval before hygiene is compromised

In summary, changing your sheets weekly is the recommended standard for cleanliness and comfort, with adjustments made based on personal circumstances like allergies or pet presence