Don't get me wrong, I love my new vintage sofa bed. The problem with buying a used sleeper sofa is that the bed is frequently pretty uncomfortable. This was the case with mine. The middle of the bed sagged horribly - so much so that I had to be creative about sleeping positions, lest the bar in my back cut me in half. I've started to take steps to rectify that, however. The first one is to replace the springs that hold the mattress deck taut.
The spring on the right is one of the old ones. You can see how stretched out it is. On the left is a new spring, all shiny and ready for service. I found the new springs at Planet Bed. Count the turns in your springs and then find the match in their catalog. Over the years these springs can become sprung, allowing the deck to sag in all the wrong places. Replacing them isn't a complicated procedure. It does take a bit of muscle and some ingenuity, however.
I had intended to use pliers to pull the springs into position. The tension is too much for the pliers, however, and they kept slipping from the grips. I ended up using the sturdy hook on a good quality wooden hanger to pull them tight. The first hanger broke after I was about half done, but the second one survived to finish the job.
So did it help? Yes, indeed! It's revived the bed beautifully, actually. The deck doesn't sag anymore and sleeping in it is much more pleasant. Taking the time and effort to revitalize something old instead of throwing it out and buying something new is a good step to take to combat the disposable nature of our consumer economy. My reasons for doing it really had to do with how the sofa looked, but it's been a lesson in sustainability as well. Why not try and upgrade something you've been thinking of replacing? If you do, I'd love to hear about it.