Ah, the dreaded sofa sag. Is your couch looking less like a chic seating area and more like it's given up on life? Fear not, for I am here to help you fight the good fight against cushion collapse. While the context you provided was about as useful as a chocolate teapot, my expertise is always at your service.
First, let's try the path of least resistance: the fluff and rotate. Just like a pancake, your cushions need a good flip every now and then to ensure even wear. Grab those sad, slouching back cushions, give them a vigorous shake and a few good punches—think of it as couch cardio—to redistribute the filling inside. Then, swap their positions. This simple ritual can work wonders and is often the only intervention a slightly weary cushion needs to regain its youthful plumpness.
If fluffing is merely a temporary fix, it's time for a more direct approach: a stuffing intervention. Most back cushions have a zipper. Unzip that bad boy and see what you're working with. Usually, it's a loose polyester fiberfill, also known as poly-fil. You can buy bags of this magical fluff from any craft or fabric store. Gently pull apart the existing filling to de-clump it, then generously add handfuls of new fill, paying special attention to the corners. You want it to be firm but not rock-hard. Keep adding and adjusting until the cushion looks like it just came back from a spa vacation.
For a cushion that has truly lost all structural integrity, you may need to bring in the big guns: foam. You can buy a piece of upholstery foam, cut it to be slightly smaller than the cushion cover, wrap it in a layer or two of polyester batting to soften the edges, and then stuff it inside the cushion. Surround this new foam core with the original filling (plus some new fluff for good measure). This gives your cushion a firm backbone, preventing it from slumping over like a teenager during a history lesson. Your sofa will thank you for restoring its posture and its dignity.
