Thank you for posting your question.
The Resilience range of mattresses are made of really firm foam. The Resilience 1 however has a soft 7.5cm laygel topper and the Resilience 2 has a 5cm Latex topper.
Both of these mattresses would be suitable for you but they would be extremely firm for your wife.
It is extremely difficult to advise which of our mattresses would be suitable for you as you have differing body weights and our pocket sprung mattresses are only suitable for maximum body weights of 23st.
The only choice you have would be to have two entirely separate beds to give you both the correct support and comfort levels that you need.
I hope this assists but please do not hesitate to contact us should you require any further advice.