Luxurious box top mattress

Mattress description:(1) Totally height: 38cm(2) Quantity in 40"HQ: K(276pcs); Q(322pcs); F(368pcs); T(506pcs)(3) High quality velveteen fabric.It is improted from Germany, environment and strong breathability, dust resistant, anti-mite function, no static electricity. Safe and health, soft and comfortable, green environmental protection standards.(4) First layer: 9cm pocket spring, Ø2.0. The pocket spring in the top is supported independent, compressed and resilience party. No disturb, reduce friction, minimize noise; enhance resilience, support perfectly. The body with mattress is entirely fitting, support the vertebrae, keep the body comfort and smooth.(5) Second layer: 20cm bonnel spring, Ø2.2.Optional row count:252 (12*21), 312 (13*24), 336 (14*24), 364 (14*26). Consistent spring diameter and even waist diameter provides increased stability and supporting power. Each part of the bed net is to better match the curves of human body.(6) ISO 9001 : 2000(7) 15 years guarantee(8) US and UK fire retardant standard both are available