The mattress came in a sealed bag that got open upon delivery which made sure it stays clean until it sat on our bed. There wasn't much chemical smell unlike the memory foam mattress and the mattress itself is pretty comfortable, firm, and your body doesn't sink in. It holds up to the weight yet it is not too rigid. My mom have back pain and can feel the difference after sleeping on this mattress. My only complaint is the color is a bit dark that it shows through my white sheets. I will try to buy a higher thread count and hope that fixes that see through issues or maybe go with darker sheets.