Originally purchased a Simmons Oceanside pillowtop. It was too soft and we sank right into it over night. It felt like sleeping in a trough because there was so much cushioning foam and the springs were 15.5 gauge. We exchanged it for this S&F and it is perfect so far. Just the right amount of cushioning on top.  It has helped with my back pain, and I hope that it lasts 20 years as we are on the lighter end of the weight scale.