Clean with vinegar and hydrogen peroxide.
For the mattress we need:
250 ml white vinegar
250 ml hydrogen peroxide
First, you should remove dust from the mattress, first with a vacuum cleaner and then using a semi-damp cloth. In the case of stains, it will be sufficient to use a solution based on water and baking soda, which will be sprayed on the stain and then rubbed with a sponge.
woman sleeps between clean sheets.
Then, in a bowl, mix white vinegar and hydrogen peroxide and, once moistened, rub a clean cloth over the mattress until you see the yellowish stains dissolve. After treatment, it is best to ventilate the room, as this way the mattress will dry faster.