We do however have an outlet range of returned mattresses, under our 60 day love it or return it guarantee. These are items that have been returned either for a refund or exchange and are graded according to any potential cosmetic marks from the return process. Grade B for example is as good as new but has a 10% discount offered, we go upto a grade F which has 50% for marks or small surface tears. These products are never faulty. All faulty returns get inspected, analysed and then disposed of.
Based on your weight and tension preference I’d look at our Origins Pocket Latex 1500 mattress model which should give a medium to firm feel. These will both have a medium progressive sink in the top layer, which will be similar to memory foam but less heat retentive and more responsive.