Hi, We are currently looking for a new mattress. We haven't bought any mattress in the UK yet. We would like a double size mattress, if possible memorable (and without springs, I already had problems with springs but this is not so important if the mattress is good enough). We are both side sleepers and we are rolling 4-5 times at night. I'm 13 st and my husband is 18 st. We have a Sleep Specialist Capricorn Orthopaedic single mattress now (with springs). I don't know what kind of type these are, but we are both sleep enough well now. Unfortunately we have to move and buy a new mattress. Can you please advice? Many thanks.