We've only had our current mattress for a little over a year (tempur-pedic-like material, had great reviews), but DH and I have so many aches and pains sleeping on it.
I was pregnant when we bought it, so I expected hip and back pain, and when it continued after the baby was born, I thought maybe I just needed to lose the baby weight. However, we just went on a trip and spent a week sleeping in different hotels, and I had little to no pain in the morning.
DH has been thinking about Saatva mattresses, but I'd love to hear what worked for you.