Selecting a mattress

Hello, I'm 173cm, 60kg and a side/front sleeper. I prefer a firmer feel to a bed (I don't like the 'sinking' feeling of memory foam - I also sleep quite hot). Looking at the spring tension chart that puts me at 'medium' - but I'm not sure which mattress would be best (Maybe the 002 or 004?). Can you make a recommendation? Thanks!