Have you ever removed a pillowcase and discovered that your once-white pillow had turned yellow? It can be surprising, especially when you regularly wash your sheets and keep your bedroom clean. But those yellow stains are more common than you might think. Every night, our pillows absorb small amounts of sweat, natural skin oils, and moisture. Over time, these substances can leave discoloration and unpleasant odors, even when the pillow is protected by a clean pillowcase.

Many people assume that a yellow pillow should immediately be thrown away. However, depending on the material and its condition, proper cleaning may help restore its freshness and remove some stains. Regular pillow maintenance can also reduce the buildup of dust and allergens. The important part is knowing which cleaning method is safe, because not every pillow can be washed the same way. Using the wrong products or washing technique could damage the filling.

Before you replace those stained pillows, there’s a simple cleaning routine worth trying — and one important mistake you should avoid.

Continue below in Part 2.