A. Timeless. The Piece Roots 90 embodies the essence of Karup Design's DNA: you get not just a sofa, but also a bed and a comfortable lounge chair. By folding down the front legs and adjusting the backrest, you create a cozy lounge chair. When you fully recline the backrest, you have a lovely bed where you can lie flat on the floor. If you fold down the backrest and flip the mattress, you have a lounge chair at a standard height. Roots 90 transforms quickly and easily - as if by magic. Do you understand the concept?.