This waterbed mattress in a dual system measures 160 x 200 x 20 cm. In a dual system, the mattress consists of two separate water cores. This system is particularly suitable for couples who primarily use the bed together and do not want to feel every movement of their partner. It consists of two water cores with identical comfort levels. The high-quality mattress and the included thermal separation wedge ensure individual temperatures. You have chosen the following comfort level: fully relaxed. This comfort level is suitable for those who prefer orthopedic support with minimal water movement. It oscillates for about 1 second after movement. The best sleeping comfort for healthy sleep!.