This Aspire Cool Tufted Ortho Mattress is an affordable yet high-quality mattress with a supportive core and natural fillings. This 24cm deep mattress features a premium spring system. It is a Bonnell sprung, open coil mattress. With interconnected coils in a metal mesh, it is this innerspring system that provides the sleeper with even support as they sleep. The mattress has a supportive core that provides orthopaedic qualities to relieve pressure so that you can enjoy undisturbed sleep. The supportive core consists of natural fillings which are excellent for controlling temperature. When it comes to the amount of comfort fillings, this mattress has four times more fillings means four times more comfort! Plus, it is up to ten times more breathable than standard mattresses. The air mesh border in the construction creates an internal, air-conditioned cooling effect. After all, a great night’s sleep is a comfortable night’s sleep! The medium-firm mattress with natural fillings is designed and manufactured in the UK. This open-coil Ortho Mattress meets all UK fire standards. Size: King.