The 8 deep harmony superior deep fill extra plush conventional spring mattress from extreme comfort ltd, combines a high-quality european engineered spring, with deep layers of comfort fillings at least 75% of which are made from recycled plastic bottles & a geo silver sleep surface with a hand tufted finish. It has additional comfort fillings to the harmony core mattress, along with handles and air vents to further improve air flow. Vacuum-packed, rolled, and boxed for ease of handling.