We purchased a couple of Red leather sofas from a very well known retailer a couple of years ago, but I've found that one side of the sofa has started to sag.... (Might be my large butt's fault).
So I have to remove the base fabric to have a look see at how they have constructed the sofa, I'm hoping it's just a case of replacing the webbing, but we'll see.
I can't get to the "Springing" any other way, because the way the sofa is constructed, pain of having leather sofas.
I'll keep you all posted as to how it's going.