What causes yellow stains on mattress?
Sweat produces similar yellowish stains, and over time, it’s common for mattresses to become discolored and musty smelling from sweat.
How do I get my mattress white again?
How do you clean and whiten a mattress?
Use a combination of cleaning supplies to make your mattress cleaner. Mix together dish soap, baking soda and hydrogen peroxide to create a mattress stain remover. Use a spray bottle to best apply this mixture. Once the stains have been sprayed, blot or rub them using a towel or rag.