Ultra premium European knitted fabric with a water-repellent finish. The water-repellent finish in the fabric repels the water or liquid absorption, thus protecting the inside mattress layers and their performance. Sleepwell's ingenious Nexa is a smart recovery memory foam. It is a responsive foam that adapts to the contours of your body and offers easy body movement. Its unique cell structure enhances airflow and promotes breathability and comfort. When used in quilting it offers a cozy, plush surface feel. Ultra premium European knitted fabric with a water-repellent finish. The water-repellent finish in the fabric repels the water or liquid absorption, thus protecting the inside mattress layers and their performance. Sleepwell's ingenious Nexa is a smart recovery memory foam. It is a responsive foam that adapts to the contours of your body and offers easy body movement. Its unique cell structure enhances airflow and promotes breathability and comfort. When used in quilting it offers a cozy, plush surface feel.