The challenge for sleeper sofas is that they need to be comfortable to sit on and sleep on. Designing a single piece of furniture ... back, and a firm seating area. Folding the back and armrests ...

The Standard's ... They stack and fold into the central section for easy storage. It's a nifty space-saver: going from 120cm long when fully extended before packing down to H76 x W80 x L35cm ...