The springking grand luxe 1500 mattress has been designed to provide sheer elegant luxury and comfort built with incredibly firm supportive pocket springs and layers of premium fillings youll find its a pleasure to go to bed every nightup to 1500 pocket springs are separately nested by hand in their fabric pockets and tied in with linen cord each spring works on its own to support you allowing you to get unparalleled levels of personalised spinal support compared to a traditional mattress layere