I love this gel memory foam topper . After it arrived the topper I felt so much , much firmer than i expected and it is a great support for my low back , neck . And when i wake up i feeling much better than before that i did not have that.
I bought queen size with 1.5 inch , but in the future maybe i will buy more thicker , but for now i am impressed what i got now it is cushion enough for me .
Tip You should put the topper on the floor to  expand and opened a window , there was a bit of chemical smell .