Materials: 50% foam and black cotton, 50% pure garment cotton. Total weight is about 50 kg. Newly made. Mattress thickness is 6" plus. However, it will settle slightly after use. Currently extra soft and not 100% plain. Inappropriate for newborn use. That is why it is being sold. Such a soft bed is not suitable for small children at all. Therefore, those who have newborn babies please skip this.