Memory foam has a reputation for being difficult—or even impossible—to clean. But whether you're dealing with spills or musty odors, there will come a time when your mattress needs a refresh. So, how ...

Memory foam is loved for its sink-in properties that mold to your body as you sleep. Made from, mainly, polyurethane, often referred to as 'viscoelastic', it's soft, dense, and comfortable to lay on.