The Helix Plus Luxe is a premium, medium-firm mattress designed for plus-size sleepers to help relieve back pain with extra support, reinforcement, and durability. Our SupremeSupport 4.0 Memory Foam (4x denser than typical mattresses) works with zoned lumbar support to keep your spine aligned and contours the back, hips, and shoulders for support up to 1500 lbs. On a scale of 1-10 where 10 is the firmest, the Helix Plus Luxe feels like a 7: a cushioned top balanced by buoyant support and zero sagging.