I don’t find this mattress very firm. Like… it’s almost soft to me. Even just sitting on it, let alone sleeping on it, I find it squishy and unsupportive. It’s not even that comfortable! I’m honestly really surprised how much people love it. I almost feel bad saying so, because it’s such a popular mattress, and I hate leaving negative reviews. But I just don’t think it’s a very good mattress — especially for the price!