Hi, I am looking to buy a new Bed / Mattress, my wife & I both weigh approx. 12 stone each. I have been looking at your Origins Pocket 1500, would in your opinion it be suitable for our weight etc. I presently have a 10 yrs.! old Silentnight Miracoil Supreme Mattress which needs replacing. It is on a Spring Loaded Divan Base, which is probably about 14 yrs. old. The base springs still seem to be ok & I wonder whether I just need to buy a Mattress on its own. If I purchased one of your Origins Pocket 1500 Mattresses do you think would it be ok & would the Guarantee still be valid !! Another question is your Divan Bases all appear to be solid, do you also supply Sprung Loaded ones. If so are they really needed & do they make much difference in the overall comfort of the bed & are they much more expensive !! Regards David.