The symphony from airsprung is designed for those who prefer a bed with a slightly softer feel it features a nested pocket sprung mattress to give a superior level of comfort and precise support where your body needs it most featuring a soft polyester filled pillow top for added comfort the symphony 1700 has 1700 pocket springs in a king size mattress symphony also benefits from fine damask fabric tufted finishing and flag stitched handles the mattress is a no turn mattress 1700 pocket s