The Harmony 8″ mattress by Home Life holds true to its promise it is designed to keep your vertebrae supported. We owe this to comforts 480 tempered steel independently-encased coils which creates an equal weight distribution to help relieve any pressure points along your neck shoulders back and hips. Another advantage to the independently-encased coil structure is it reduces motion disturbance and extends the life of the springs. Don’t let the price fool you. This is the best mattress in the market for its price.