Choice of three mattresses to use on solid base

Hi there
We are currently looking at two mattresses to go on our existing solid base.
My partner weighs just under 100kg and I weigh 60kg. We have agreed on a medium firmness and we are looking at Vispring Wembury Superb bedstead mattress, and Hypnos Deluxe.
Looking at these two and their properties - do you have something similar that would give the same medium support on a solid base?
Thanks
Sarah