Experience refreshing sleep every night with the gel enhanced king size mattress for back support, expertly crafted to keep you cool and comfortable. Featuring a 13.5 Bonnell spring mattress king size with cooling gel, you'll enjoy balanced support and gentle pressure relief thanks to the open coil system and innovative gel layer. The orthopaedic king mattress gel bonnell spring ensures breathability, eco-friendly cushioning and a hypoallergenic finish, all wrapped in a plush quilted panel for inviting comfort. Arriving rolled and boxed, setup is a breeze and the mattress supports up to 120kg for versatile use.