We bought the Adapt split king. The mattress makes the worst noise when you move around. The two mattresses separate and leave a 5 inch gap every night! The mattress is more like a medium-firm. I would rate it's firmness a 8 which is too hard. The floor model was softer but of course it had been layered on for years. I owned a BeautyRest before this and wish I hadn't got rid of it. I'm so sick of this mattress.