• SL is the most developed spring system to date.
• Uses twice as many springs (248 pieces per m2) than any other spring system so that the mattress comes in contact with more points of the body thereby providing a more restful sleep.
• All springs are connected to each other without interruption thereby moving concurrently and with the same force and thus preventing deformation.
• Another distinguishing feature of SL springs is that the instance of shrinkage and wear seen in Bonel spring system is much less. İstikbal gives 10 year guarantee for SL spring system made furniture.
• Conducive to high mattress production with less filling material.
• Shipped on pallets.