With the Classic Superflex slatted frame, many functional details sensibly ensure that the entire surface of the mattress is supported. The flexible shoulder comfort zone ensures improved spine support, especially when you are on your side. The hardness of the slatted frame can be adjusted to nine levels with the double slat technology and load-distributing brace in the middle. The slats are housed in movable double rubber caps, which provide flexible, silent cushioning. Due to its surface texture, the mattress does not slip. The external beams are made of laminated beechwood, and the crossbars are made of solid beech with a decorative metal foil.