This amazing cushion changes shape to create the most comfortable support for whatever rests upon it, whether it is your head, arm or bottom! It has a remarkably stretchy yet soft outer skin & is filled with millions of polystyrene micro-granules, allowing it to easily squash & distort. & once your nap, doze or lazing about is over, Cushtie retracts back to its easy to store cylindrical form. A welcome relief on long journeys, dangerously sleep-inducing for late nights in the office, & bliss for snuggling into on the sofa.