Sleeping on the job

Ever had a car seat so comfortable you could fall asleep? Engineers from Citroen the company that famously developed hydropneumatic suspension for the DS to produce a magic carpet ride over even the most rugged roads have been working on new seats that utilise the technology in modern mattresses. Prototype seats using memory foam-style technology are currently being used in a Citroen C4 Cactus test car the French manufacturer calls the Advanced Comfort Lab. Wonder if it comes with a duvet for naps?