Sprung slats and the effect on feel?

My partner and I have had exactly the same problem - we originally bought a Silentnight bed from Bensons, with a sprung slat bedstead. I found the bed very uncomfortable - to the point where we exchanged it for the Decadence mattress through their '40 night comfort' guarantee. We had the same problem with the Decadence mattress - it felt much too firm, certainly a lot firmer than the mattress in the shop. Both mattresses felt like there was too much tension in them - there was a real feeling of something forcing upwards. At first, we were thinking we would have to buy another mattress and start all over again, then realised the problem could be the sprung slats. In Bensons, we were led to believe that the sprung slats would make the mattress feel very slightly softer - not harder, so I feel we weren't well advised. We had a 3 inch thick piece of memory foam and put that over the slats, then put the mattress on top. That seemed to 'dampen' the 'tension' but didn't solve the problem. Then we turned round the slats so that they were concave, rather than convex, put the foam on top, then the mattress on top of that. The result is a very comfortable bed!

However, I am now concerned that the mattress won't get the proper long-tern support with the slats turned round the wrong way and we're considering removing them and boarding the bed. What do you think?

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