Ingredients needed:

250 ml of white vinegar
250 ml of hydrogen peroxide
Method :

Vacuum the surface of the mattress to remove dust and residue.
Prepare a solution with baking soda and water, then spray it on the stains. Leave it to act for a few minutes before scrubbing with a sponge.
Mix white vinegar and hydrogen peroxide in a bowl.
Soak a clean cloth in the solution and rub the yellowed areas of the mattress.
Allow to dry by ventilating the room well.
Prevent yellowing of pillows and mattresses
Use waterproof covers to protect pillows and mattress.
Air the bedding every day to avoid moisture build-up.
Avoid sleeping with wet hair or eating in bed to limit staining.
With these natural tips, mattresses and pillows can regain their whiteness without resorting to harsh chemicals. Regular maintenance not only improves bed hygiene, but also extends the life of your bedding.