Is mattress cleaning worth it?

Mattress cleaning removes body oil, sweat, dust-mite waste, and the fine skin cells that build up in the top few inches of the mattress over years of use. Vacuuming through a mattress cover doesn't reach the material where those things accumulate. Hot-water extraction on the mattress surface lifts them out and leaves the top layer visibly cleaner and drier. It's worth it when the mattress is older than a couple of years, when someone in the home has dust or dander allergies, after a stomach bug or spill, or before a guest visit. Dry time is usually 6 to 8 hours with a fan on the room.