A combined orthopedic mattress that has two sides of different quality . It is two mattresses in one and you can change the mattress prison by simply turning it to the other side. The base consists of a block of independent springs "Pocket Spring", which evenly distributes the load, optimally balances the sleeping body. This spring block repeats the shape of your body, perfectly adapting to your body for maximum comfort. Medium hard filling - flexible foam (polyurethane foam) and hard - coconut fiber board. Porolon (polyurethane foam) is ecologically clean, flexible, durable and hypoallergenic, a very common filling, withstands heavy and long-term loads. Coconut fiber gives the mattress firmness and orthopedic hardness. Special ecological additives prevent dust and parasites from entering the mattress. Meets all orthopedic requirements. Winter-Summer.