This mattress is the perfect firmness and support. We had a great sleep from day 1. One important downside to this mattress is the lack of support around the edge of the mattress. This causes one to sink when sitting on the edge which is not ideal. Also, as a result of this the mattress is bulging outward along the length. If it were not for the bedframes support edge, there would be no support to keep the mattress shape. So I am torn between the comfort and the notion that this mattress won't last as long as it should.