After using other memory foam toppers I found this to be very soft. My lower back sunk deeply into the 3" topper and it was painful.
I did not notice a bad smell but I would recommend something firmer if you sleep on your back. All Sleep was excellent with the return, so great customer service.

AWESOME product at a great value! At first I was skeptical because the weight of the item was not in the description and the weight on the shipping order was less then what it should have weighed for 5.3lb density foam. After inquiring with the company and weighing the package when it arrived, I found out that they pay a flat rate for the package and it indeed weighed more then the shipping order stated. It was the correct weight for 5.3lb density memory foam. It is just over 8 cubic feet of foam and the actual weight was 42+lbs. This had absolutely NO SMELL like you hear with some foams. It obviously has an odor, but it is nothing offensive, very light and can only be smelled when you put your nose to it and it doesn't fill the room. It is equal in quality to a Tempurpedic as I have one to compare it to. If you are looking for a foam topper with a density and feel of a Tempurpedic or other high 5.3lb density foam, then this is the best vaule on the web.