Why Do Pillows Turn Yellow?

Pillows turn yellow mainly due to moisture, especially sweat. The body releases 200–700 milliliters of sweat each night, which seeps into the pillow. Other factors include natural oils, saliva, and hair products.

How to Keep Your Pillow Fresh
Wash pillowcases regularly to prevent moisture from reaching the pillow.
Wash your pillow every 3–6 months to remove sweat, oils, and bacteria.
Dry your hair before bed to prevent added moisture.
Use protective covers to reduce staining.

To Keep or Replace?
Some people cherish yellowed pillows for comfort, while others may need a clean or replacement. Understanding why pillows yellow helps you decide whether to clean or replace yours.