Specifications Height: Mattress 22 cm +Base 57 cm +Spring Base 54 cm Wire Dia. 2.4 mm Design Bonnell Coil Primary Insulator 1 Layer Hard Cotton Felt 1 Layer PP mesh Padding 20 mm 30D Hard Foam Cover Belgian Damask Fabric Multi Needle Quilter to: 10 mm 13D Soft Foam 150gsm Polyester Wadding Advanced Pressure Support System in the center one third. Jet Lock - Dyna Flex Combination
Additional Information:	At a coil count of 450 Bonnel Springs for a standard king size mattress, you are sure to be perfectly balanced. An open coil Bonnel spring unit with all the coils working individually to support the body across the entire sleeping surface is guaranteed. You get comfort, support and durability at a reasonable price.