Premio Special Edition Crown Pillow Top Bonnell Spring Mattress is a premium quality mattress that offers a luxurious and comfortable sleeping surface. It features a Bonnell spring system that provides a strong and durable base for a good night's sleep. The mattress is topped with multiple layers of high-density foam and a pillow top layer, which offers a plush and cushioned feel. The pillow top layer is designed with a crown shape, providing added support and contouring to the body.