The Familon Memory Firm top mattress, which adjusts itself based on your body temperature and weight, gives you a wonderful feeling of weightlessness and reduces numbness. The extra supportive memory-foam top mattress provides firm support for bodies of different shapes and is an ideal choice for people with back problems. Since the top mattress is reversible, you can choose the side that suits you best: profiled and soft or smooth and firm. Made sustainably and suitable for sensitive skin. The Memory Firm top mattress feels firmer than the Memory top mattress.