I was impressed with how compact the packaging was for this mattress! It was heavy, but easily moved into position in the new guest space in our finished attic. It fit perfectly on the platform bed and quickly expanded to size. I didn't notice any chemical smells at all. I haven't slept on the mattress as its in a guest space but it feels very comfortable to sit on and lay down on for a minute. If my impression should change, I'll update my review to reflect that. Otherwise, I'm very happy with my purchase.