The best temperature to wash bedding depends on the type of fabric and the care label instructions. Most fabrics can be washed at a warm temperature of 40°C to remove dirt, natural body oils, and bacteria effectively. White and light-colored cotton sheets can be washed on any water temperature, but during the cold and flu season, it is recommended to wash them on a hot/warm cycle to sanitize them and reduce allergens. Silk bed sheets should be washed at a lower temperature of 30°C with a mild, non-biological detergent, or a silk specialist washing detergent. It is important to read the care label instructions and follow them to avoid damaging the fabric. Washing at a higher temperature can kill more bacteria, but it can also cause the fibers to warp or shrink during the wash. It is recommended to wash bedding at least once every other week.