On Jun 20, 7:15*pm, mcp6453 wrote:
My elderly in-laws have a couch that allows you to sink deeply into it
when you sit. Because of their physical infirmities, standing is
difficult. The frame of the couch is in tact. None of the frame is
broken or drooping. The cushions look fine, but I'm sure they have lost
some of their support. My theory is that the springs supporting the seat
cushions are worn.

Assuming that my theory is correct, does it make sense to try to get the
springs replaced? Is there a snowball's chance that a furniture repair
person or an upholsterer would be able to replace the springs? The sofa
is not a sleeper version. It's just a sofa.

The couch is in great condition otherwise, and the in-laws are not
amenable to buying new furniture. Any thoughts?

Quite often these couches are fitted with "zig zag" springs to support
the cushions nailed to the internal wooden frame. They often come
loose. Turn the thing upside down and take off the fabric covering
the bottom & you will see these springs (if any) and you can determine
if they are loose. They are a bugger to refix though.
Sometimes it's rubber straps instead of springs BTW. They are even
worse to refix.