How plush or firm a mattress feels always depends on the individual's weight. A mattress will feel softer to a heavier sleeper because the cushioning foam disperses their body weight. The exact same bed will feel firmer to a lighter sleeper because their body puts less force on the sleep surface.
We developed the Nolah Evolution Comfort+ for a range of plus-size body types, so it's impossible to say exactly how the mattress will feel for every sleeper. That said, most of our happy Comfort+ customers rate its firmness level around 5.5-6/10 on the mattress firmness scale.