Bought this mattress back in mid-February, but I think a review on a mattress should come after sleeping on it for a while. 1. It arrived so quickly, I was shocked. Overstock.com is good! 2. This is a heavy mattress! Have someone help you carry and maneuver it onto your bed-frame. 3. There was no smell when I opened it. 4. I did lie on it right away and it was hard. I waited two days to sleep on it, per the instructions, and it actually seemed softer. Air to this bed is like water to a sponge. Definitely follow the 2-day rule. 5. Two friends got this item on my recommendation. We found this to be important info Rotate the mattress (no, not flip - rotate!) every 2-3 months. Whether you sleep alone or with a partner, whether you weigh 100 lbs. or 400 lbs. does not matter, you are going to get butt-dents. The mattress does soften and you are going to want it to soften evenly. 6. Just because the mattress softens does not mean it breaks down its support. These past months include the best sleep I have had in decades! I was grumpy, tired and still sleepy when my alarm sounded each morning, but not anymore. Most mornings I awaken before the alarm. 7. Oh, BTW, the butt-dents will go away. lol. 8. Enjoy!