The core is made of high-quality foam, covered on one side with viscoelastic “memory” foam, which perfectly adapts to the shape of the body, while minimizing the impact on the body and circulation. White stretch quilted fabric (30% viscose / 64% polyester / 6% elastane). Quilting in the upper part and sides with fireproof “thermosafe” felt. Polyester quilting in the head and foot area and inside, with viscoelastic foam on the outside and sides.