This bed is firm. I have a split king and it’s way more firm than my previous king bed, however the part that your body is on is foam. And it’s cooling. The firmness is offset by the ability to move all parts of the bed including the foot area which can raise and take pressure off lower back. I’m going to put a small egg crate foam on it to see if it will soften. I’m giving it 5 stars because I sleep very well on it regardless of the firmness and it was adequately explained that it was firm.