Experience nights of cool relief and cushioned support with this double gel enhanced bonnell spring mattress for cool sleep, offering a blend of gentle firmness and advanced temperature regulation. The 13.5g open coil Bonnell spring core delivers consistent support for back and side sleepers, while the innovative gel layer draws away heat for a refreshing rest. A quilted panel top adds plush comfort and recycled polyester layers provide breathable, eco-conscious cushioning, making it a great choice for hot sleepers seeking balanced comfort in a 4ft6 bonnell spring mattress with gel layer for back support.