I purchased this product and spent the additional money because of the eco-friendly rating. My son likes the squishy feel of memory foam, but I hesitated because of the material from which it's made can release fumes. The foam itself is not environmentally friendly, but I understood that it is manufactured in a way to reduce stress on the environment and those manufacturing it. So, I don't really know if I am better off having spend the money, but I have more peace of mind. When I opened it, it was wrapped tightly in plastic wrap. There was no odor when I opened it. It took 36 hours to get into full shape, flipping it over a few times. I let that occur in a closed room and the only time I smelled an odor was when I entered the room after the mattress had been "breathing" for about 12 hours. There is no odor now. The foam is more firm than others I've tried which I like, but my son was a little disappointed. It is a little smaller in length than his standard queen bed, but it doesn't alter the appearance of a made bed. The sheets we already owned and mattress cover both fit over the pad and the mattress. It is thick enough that it could be used alone on a floor or platform for sleepovers/company.