You've had your bed for too many years and it's seen a LOT of action. You need better support for your night moves so you order a new mattress. It shows-up, gets set-up and the old one is taken away. Though have you ever wondered where your old stained and tired mattress goes?
I don't have the perfect answer but I do know that there's a thriving secondary market for mattresses. Like, have you ever seen a mattress roped to the outside facade of a dollar store? Or a pile of plastic wrapped twins stacked 12 high for sale at a bodega/ furniture store? These are not new Sealy's. They've been reconditioned.
I'm not sure if mattress resale is clean a clean and legal business so I won't disclose this location. At the "mattress factory" old mattresses are stripped (I hope) down to their foundations and built back up with new fabrics and foam. I stopped in yesterday to spend a sweaty hour relishing in pattern, piles and plushes.
I've always been attracted to mattresses because of their colorful and gaudy patterning but have been disappointed that all the floral fabric and colors are a thing of the past. But at the mattress factory history lives on, at least for the moments before they go under the knife for another go-round. Personally, I'll pony up for the Serta and pay retail.