The first step in restoring whiteness is to check the care label. Most pillows, especially those filled with synthetic or feather materials, can be machine-washed on a gentle cycle using warm water and mild detergent. Avoid hot water, which can damage the filling or cause clumping.
For deep stains, pre-soak pillows in a mixture of warm water, baking soda, and white vinegar. This natural combination helps break down oils and remove odor without harsh chemicals. Soaking for about 30 minutes before washing makes a noticeable difference.