Well here goes. I did a lot of research for a mattress, I knew I wanted the 14” platform so I needed a 12” mattress to make it a good height. I tried a 10” sealy hybrid in the store and knew I needed a 12”, so I found this one on Modern Productions. Read a lot of the reviews, “It’s too hard, It’s too soft, You can feel the springs, etc”. I have bad inflammatory arthritis, on my previous mattress I would wake up barely able to walk and never could find a good sleeping position. Well my first night on this mattress I was in heaven. I slept well and woke up not hurting. It’s only been 1 night so to me it’s a good indication I hit pay dirt. About setting up the mattress, it expands fairly quickly and does have a slight odor at first but the odor went away in less than 24 hours. I opened it in my dining room to give it the 72 hrs recommended for it to expand. It expanded the full 12” right away. It sat there for a week before I could get someone to help me move my beds around. My suggestion is to give your mattress the full 72 hrs to air out and expand properly before sleeping on it. Also, it is not firm but more of a medium firm. It has the perfect softness and firmness to it and you definitely don’t feel the springs. I just couldn’t be happier and I didn’t pay $1900 for it, more like 1/2 that. Thank you Modern Productions for another good product.