Re-sell old mattresses that are in decent condition but are no longer comfortable for you. Post an advertisement in the newspaper or an online classified site. Before selling the mattress, ensure it is clean and free of bugs. Mattresses in poor condition often cannot be sold for any amount of money and should be offered for free instead.
Many communities have charitable organizations willing to accept used pillowtop mattresses. They often require the mattress to be professionally cleaned before you can drop it off. Though cleaning it costs a small amount of money, you possibly can recoup your expense as a tax write-off at the end of the year. If you can't find a charity that will accept an old mattress, check with your local fire station. Some stations gladly take old mattresses in any condition to be used in training burns. Mattresses ignite quickly and easily and create a lot of smoke.
Take your old mattress to a nearby recycling facility. There is often a fee to have it recycled, but you will be keeping yet another mattress from piling up at the landfill. Call ahead before loading it up and driving there; some recycling facilities do not accept mattresses because of their complex construction; when it is recycled, everything must first be taken apart before the different components can be recycled.
When you have a new mattress delivered, most mattress stores will remove your old one for free or for a small fee. Always ask the salesperson before you finalize your purchase so you know what to expect. Delivery drivers do not always have the ability to accept a mattress without previous arrangements. If you are not able to have the old mattress removed by the delivery company, look for local companies that will provide this service for a fee, often a junk hauling or disposal company.
Mattresses that are in no condition to be re-sold or given away can be taken apart and re-used for a variety of purposes. The outer fabric can be used to make a big new pillow bed for your pet. All that fluffy padding and foams that were once so comfortable can be used as stuffing for the pet bed. The springs can be used as a trellis for a climbing plant. The insulator pad or fabric can be laid down in a garden or flower bed underneath the plants and a layer of soil as a weed barrier.