The bed Yin Yang and its simplicity of form and its ability of size adjustment is a dream in itself. The lamellas induce a play between openess and compactness which depending on the level of extension produce a variable gap in the elements. Furthermore, the flexibility of the lamellas offer well-rounded comfort laying down or sitting up. The bed Ying Yang can be used as a seat unit as well. Pushed together the space under the bed can be used for storing a mattress, e.g.