Duroflex is AQA (American Quality Assessors) certified and member of the International Sleep Products Association (ISPA) therefore updated on latest research and developments. Duroflex spring mattresses are manufactured with specially imported springs of German technologies and the very latest Italian CNC quilting machines that bring you the best spring mattresses available in India today. This luxury spring mattress comes with a high resilient spring core cased with PU Foam for side reinforcement and sandwiched between layers of PU Foam and cotton felt to give your body the right sleeping posture. Compacted resistance system with full prone support and side reinforcement system. In Duroflex FPS Technology mattresses, the springs are specially made, weighted and arranged across 3 different zones to provide optimal support and comfort for your spine and other major pressure points. The first zone provides support to the head, shoulder and lumbar regions. The second re-enforced zone, supports the heavier pelvic region. The third zone supports the knee, lower leg, foot and ankle.