So far so good as far as comfort goes. I got the firm 14" mattress and it's perfect, not super stiff just enough softness to feel you are being cradled by the gel layer but not to the point you feel you are sinking in. The reason for my 4 star rating is twofold: the mattress is completely unbranded so I didn't feel very assured when I unpacked it, looking for a brand name and was wondering if I did indeed receive the right product. Also in hindsight, I wish I had done my homework more thoroughly on foam mattresses as the polyurethane material this is made out of is not flame retardant. I would just feel better if it was.