Thank you for your enquiry. You do not say what your preference is to how the mattress should feel. This is determined in the upholstery layers (also known as the comfort layers). Also we would need to know if you are a side and/or hot sleeper. It is these factors which would determine which mattress would be preferable to yourself.
We would recommend for your body weight a firm spring tension. This is what supports your body through out the night. We also have the Resilience range which are foam mattresses designed for the heavier sleeper.
If you would like to discuss this further please do not hesitate to contact the office 0161 945 3757