I purchased this bed "firmness" based on thorough research. I have a bad lower back and medium firm seemed to be the fit for it. The bed itself came rolled up in plastic (heavy, keep in mind) within a beat up box but no damage to the mattress. Upon opening, it did have some kind of chemical smell others mentioned. Maybe over powering to others but some may not mind it. Took their advice and aired it out for 3 days (to others, you might want to air it out for even a few extra days). It still had the odor but it didn't bother me as much. Exact measurements. The bed feels good, not too soft and not that firm. Works well for me. Someone mentioned it was way too soft... I don't know what they we're talking about. Its Medium Firm for sure. I've had it for about nearly 2 months and so far so good. It's not the best bed but it's not the worst either. The quality is good from my standards. The price made me jump on it. Make sure you do your research before buying.