2 FREE PILLOWS. The Flexcell 700 range of memory foam beds & mattresses are made with 7cm of high density visco elastic memory foam & an easy removable luxurious woven damask cover. This range is made with slow recovery memory foam supplied from UK market leader, British Vita Foam, & incorporates an open-cell technique for increased airflow. Visco-elastic memory foam has temperature sensitive properties, that will ensure the mattress moulds to the contours of your body, giving maximum reduced pressure support whilst you sleep.