We have several of these toppers on our beds; those used often and those for company. They definitely extend the life of your probably should be replaced mattress, and for the price they work well for us. Rolled out easily and any odor disappeared after a short while. Will change your need for slightly deeper pocketed sheets, however. Very comfortable.
This memory foam has NO density to it what so ever. It is soft and mushy and give little to no support. I was extremely disappointed with this purchase! Unless you have a very firm mattress and are looking to have just a softer surface, avoid this selection.
We have had this topper for quite some time now and it has held up very well. Plus it's nice and soft and super comfortable. The only downside, if you could call it that, is that it doesn't always stay flat on the bed, so it can make the bed look unmade.
With an extremely difficult back stemming from old car accident injuries, sleeping for me is a trick unless the surface is just right. We bought a very expensive king size mattress set six years ago thinking it would cure the sleeping discomfort problems, (previously we had had two separate flotation mattresses which worked well for me but finally needed replacing) and within the first year I was regretting the purchase. This mattress topper was on sale on OS one day when I was browsing and decided it couldn't hurt to give it a try. The first night I slept on it I felt like a new woman! The following spring I ordered another and had it sent directly to my daughter's home in Oahu for our upcoming annual visit. It changed my whole enjoyment of the visit because my back didn't hurt every morning anymore while we were there! Needless to say, it was a great purchase choice times two for my situation.