Mattress quality appears premium except the comfort level. In fact it will render pain to your spine after prolonged use. There is no firmness in bed for which it leads to back pain.
Duroflex does not provides warranty for comfort. So there is no point in going for Duroflex if it does not care for users’ comfort. The same Ortho mattress of other brand like Kurlon are much more comfortable. I am still lamenting for choosing Duroflex brand since June 2021.