Love this mattress! I have severe lower back pain and had searched for mattress for a long time. Then my friend who has same problem recommended this one to me. Now I have been using this mattress for a week now. It is super comfortable, not too soft, not too hard,  just the right firmness to me. It's a perfect support and relaxation for my back for the whole night!! My father also tried it. We all love it. I am thinking to buy the 2nd for my father whose current mattress is kind of soft. I will definitely recommend this to my friends. Plus the packing and unpacking are quite convenient. It can be rolled into a thin pack, a nice option for camping as well. I really love this new mattress!!!