Unfortunately, mattresses don't last as long as we would hope. If you want your mattress to last as long as possible, you need to take proper care of it. Here are some things that you should be doing to take care of your mattress.
They say that mattresses double in weight every ten years as a result of built-up oils, skin cells, and dust mites. While research has not borne out the 'doubles in weight' claim, mattresses absolutely do age. Here's an overview of how to make your mattress and bedding last for years.