All our mattresses consist of three layers of foam. And the specific composition of foams is tailored to your requirements. Your height, weight, and your preference for firmness are taken into consideration, ensuring that your mattress is perfectly suited to your needs. Our Ultima30, 50, and 75 mattresses feature a plush 65mm top layer of memory foam. This layer provides exceptional comfort by adapting and moulding to the contours of your body, reducing pressure. A unique aspect of our mattresses is that the layers aren’t glued together. There are two reasons for this… First, all the foams we are open-celled, so air naturally passes through them. Gluing the layers would create a barrier, preventing this airflow, and making the mattress feel unnecessarily warm. And second, if you find after a couple of weeks or so your mattress is too soft or firm, we can send you a replacement layer to change the feel of it.