where does the material come from and what is the density?
1970060
The density was said to be 5.0. I thought that would have a fair amount of resistance but each person in my family of various weights just sank into it. Unuseable. I don't know the origin of the material.
204238
I don't know the answer to your question but I am guessing different materials were used which explains the difference in size and weight.
59279
The packaging does not indicate a density weight, however it is comparable in my opinion to the Sleep Joy 2 inch 3 lb density topper I purchased for my daughter's bed. Hope that helps!
1219388
I am not sure of density of it, all I know it is pretty supportive and firm, but not hard. It is very comfortable.
1927282
Don't know the actual density, but didn't compress much when slept on. Was nice but not as thick as I thought it should be for the price. Hope this helps!
1526048
I am not sure but the density seems firm to me. It is a very comfortable and supportive pillow.
700350
Wikipedia has an accurate explanation of paper density at https://en.wikipedia.org/wiki/Paper_density
883058
I couldn't tell you exactly, but the top layer of foam is fairly soft and conforming while the bottom layer gives more support and is much denser.If your concern is about any dents being formed, my girlfriend and I are very... rough on beds, so much that we've managed to destroy 3 $1,000+ dollar beds in a matter of a few years, but this one has held up for the last 6 months or so without even begging to sag or lose any of it's original "springiness"
1452094
I don't know the density, but it is very firm. I used it on my couch and I love it. It gave new life to a saggy couch
109062
I'm not sure. I use mine just about every night, and I haven't had any issues with it losing density.
1206239
5 inches. I don't know the density but it is wonderful. Really makes a huge difference.
1569831
I bought it before and like it very much. I am mechanical engineer. So, I believe it's some kind of "composite" material that is reinforced inside with high strength filaments/fibers. Very strong!
668134
I didn't sell it, I bought it. I am NOT an Amazon sellerYour question referred to density not thickness, it is 3 inches thick
1673766
I would ask the company about this as I do not know about relative densities.
1568053
Going by the shipping weight on here its 3lbs or a little less which seems like a good deal. Calculate density by multiplying length x width x height divide that by 1729 to get an answer in cubic feet. then divide the weight by cubic feet and you will have the density.
2160198
I believe it is regular high density foam. The firmness is determined by the top latex layer. BTW we are VERY happy with this mattress. We have had it about 3 months now. It does seem to be breaking in a bit and I think is maybe 5% softer than when it was new. But we are 100% satisfied with it.
781322
That's a good question. The whole matt seems to be of a rubber type material or maybe it is rubber. It never came in any type of packaging for identification purposes. The black part is rough for support so it doesn't slide on any surface. The white part is more smoother of a surface. I like it a lot. It worked good for me as I used it to build my computers. It's pretty durable too. I hope this helps you out. :)