Pocket Sprung. Hand Tufted. Fibre Fillings.The Ortho Pocket mattress by Airsprung is from the comfortably firm range, and has a medium to firm tension. The mattress contains the pocket spring system in which each spring is individually sewn into its own fabric pocket allowing each spring to move independently enabling each spring to respond to the bodys every movement and contour. The Ortho Pocket mattress by Airsprung has a hand tufted finish, filled with man made fibre fillings. Suitable for a wide range of divan bases, or bedsteads that are available on our website.