Although this mattress is listed as being firm, I found it to be on the softer side and it doesn’t have the edge support I am looking for, which is why i am docking a star. That being said, I am a very hot sleeper and I did find this mattress to be cool and comfy! There is a slight odor as most online mattresses but it dissipated after a few days, I left the window in my room open to help it air out.