Photograph by Christof Echard.
This flexible textile-covered L-shaped sofa incorporates daybed and seat on the backside. After much testing, two types of foam were chosen, a harder foam for the seats and a softer foam for the back rests. Originally fabricated by Synthetix, the The Twisted Sofa is now available at :
www.hothousedesign.cn. 
Thanks to Live Westli for her help.