The comfort of this mattress is great. I bought this for the cooling effects it says it has. I’m not sure if it’s the combination of the mattress protector I’m using with this mattress, but I get SO hot that I have to blast the AC ALL NIGHT long just to be able to sleep. I can feel the heat radiating off the mattress when I get up. Both the mattress and the protector have zero reviews of other getting hot. So I’m not sure :( love the comfort of this mattress though