This 12 mattress is firm, but not too firm. I got it for my adult daughters bedroom. After sleeping on it for several nights, she said she likes it. It did take some getting used to. The old mattress was worn out, so it was not firm at all. She said after the first night, it slept much better. So, if youre not used to a firm mattress, give it a little time, and you will like it. If youre looking for an inexpensive good firm mattress, this is the one for you! Ships quickly, and affordable! Another great product by Wayfair!!