Super high density springs and sumptuous natural fillings offer maximum resilience comfort and support with minimal mattress turning the hemingway zip amp link mattress is at the top of our better range available in tensions 4 soft to 8 our firmest tension 3 rows of hand side stitching for edge to edge support turn with the seasons fillings revolution pocket springs hd pocket springs cashmere hempure fibres horsehair wool blend mohair wool and egyptian cotton surface fillings we offer