With a mattress that old, there is nothing you can do to make it for a comfortable sleep. Check out stores that sell mattresses and speak to the salesmen about getting a deal. Sometimes you can get the floor models very cheap. Now, this wouldn't be for everyone, but my sister and BIL bought an entire bedroom set off Craigslist to furnish one of the bedrooms in their new place. They weren't going to take the mattress and boxspring at first but when they saw the condition it was it, they were shocked!! It looked brand new! It was an elderly couple that were selling a larger home to move into a smaller condo and it had been in their guest room. I sleep on it when I visit my sister and I swear it is the most comfortable mattress I've ever slept on. So, depending on the situation, you could look at craigslist ads and see what you come up with.