I hesitate to recommend an all latex mattress.
One of the more common problems that goes along with carrying that much weight, are back problems…specifically, disc related back problems.
For that condition, we’ve found that a strong coil unit provides better spinal support. Adding a latex topper gives long lasting comfort.
In addition, you’re getting some bad advice. A thicker all latex mattress is more likely to lose it shape under a big man than a thinner all latex mattress.
You have to understand that the average salesperson is trained to maximize the sale.
They aren’t trained to know what’s best for you…just what’s best for themselves and their employers.
If you have no disc problems, then an all latex mattress is a good choice.
Since your wife is a back sleeper, I recommend the Ever-Eden 8″…which will give some additional surface comfort over the 6″ model.
BTW, if this mattress was just for you, the 6″ would be the better choice.
If you do have some disc problems in your spine, then we would recommend a strong innerspring, like these 2 sided Wolf mattresses:
The best topper for a big man to use with that mattress is the EverEden Vytex Dunlop in soft….3″.shown here:
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