This mattress features a firmer Bonnell spring unit which gives extra support and pressure relief as you sleep. With natural layers of wool and cotton comfort fibers for additional luxury, featuring environmentally friendly soft cushioning layers that all-natural airflow for a more refreshing night’s sleep. The textured soft knit fabric is infused with aloe vera oil which is proven to have healing and soothing properties. Delivered rolled for your convenience and does not require turning, for effortless care. Size: Single (3')