How to clean and whiten the old mattress even if it is stained?

Here are the steps you need to follow to do this:

Pour lukewarm water into a bowl
Melt some Marseille soap
Dip a rag in it
Check the stain well and rub it off
Rinse with cold water and dry

How to get rid of traces of vomit?

Vomiting is the result of improper indigestion. It can happen to anyone, not necessarily children.

Vomit stains have the peculiarity of being very stubborn . Therefore, it is recommended to treat them with a layer of baking soda and spread it on the bed. Then vacuum up the white powder and begin the treatment.

Here are the steps you need to follow to do this:

Mix water and white vinegar in equal amounts
Dip a white cloth in it
Wring out the stain and rub it with the soaked cloth
To rinse, use a cloth moistened with mineral water