While the Medium model of the Breeze Pro is also slightly firmer than the Nolah Original, Tempur-Pedic uses dense memory foam ... it's then cut into exact layers to be used in any of 3Z's mattresses.
That said, you can certainly get a solid night's sleep for less: Take the Nectar Classic Memory Foam Mattress ... I carefully cut through the plastic, making sure not to damage the mattress.
You can either cut costs to make your mattress ... The new Nectar Luxe mattresses are by far some of the nicest memory foam beds I've ever tried. The Luxe Hybrid is now Nectar's most premium ...