Experience a unique sleep with the Silentnight Just Serene Hybrid Mattress. Designed with 1000 Mirapocket® springs that offer personalised support. The springs contour to your body shape, enhancing the support where you need it most. Working independently from each other, the springs distribute your weight evenly, resulting in a soothing, cosy sleep. A layer of ReVo™ high-density foam provides a durable and supportive slumber. The open-cell structure improves airflow and reduces body heat. The Serene is topped off with 1000 mini pocket springs. There to offer to intensify the comfort needed for a great night’s sleep. Delivered rolled and boxed for easy convenience. Free Next Day Delivery.