According to Laundry Experts, You Should Be Washing Your Sheets at Least Once a Week

suitable for many cotton sheets, provided the care label allows it.

However, hot water is not always necessary. The right temperature depends on the fabric, detergent, and cleaning needs.

If someone in the household is ill or the bedding has been contaminated, follow relevant healthcare or laundry guidance for the appropriate washing temperature and product.
Step 4: Use the correct amount of detergent

More detergent does not automatically mean cleaner sheets.

Too much can leave residue in the fabric and washing machine. Follow the detergent instructions and adjust the amount for your load size and water conditions.
Step 5: Dry