The Seville is a 1200 pocket sprung mattress. The Seville has 1200 pocket springs which are enclosed within individual fabric pockets and work independently from each other reacting only when pressure is applied to that area eliminating any roll together. This mattress should be turned and rotated regularly to help extend its life. It is upholstered with soft knit cover is hand tufted with handles to the sides for turning and rotation of the mattress.