The cover of my mattress has gone grayish and yellowish, it looks bad. But on Ikea's website it says "do not bleach".
Is there still a way to make it more white? Perhaps not as white as it once was, but at least presentable?
100% polyester Polyester wadding Non-woven polypropylene Machine wash max 60°C, normal process. Do not bleach. Do not tumble dry. Do not iron. Do not dryclean