Helix Plus | Mattress for Plus Size SleepersThis durable hybrid mattress combines layers of high density foam with our enhanced support base to offer sturdy, pressure relieving comfort for all sleeping positions. We've taken our individually wrapped steel coils to the next level with a reinforced coil gauge from edge to edge to offer incredible support and motion isolation. We've combined carefully selected foam layers to offer sleepers the optimal blend of a high density responsive feel with