Relax and unwind on the Ergolux 21cm Bonnell Spring Pillowtop Mattress for a dream-like sleep experience. Quality materials and design provide optimal comfort and support for a peaceful night’s sleep. The included Bonnell spring system provides a reliable backbone for the mattress, while a breathable fabric helps promote airflow and ensure lasting durability. High-density support foam adds an additional layer of comfort, and vacuum compression packing makes transporting and setting up a breeze.