After much researching and reading this forum for the past couple of weeks we've decided to buy our latex mattress from Flobeds.  But they are having a sale on the natural latex beds going on that ends Friday (tomorrow!) and I still don't know what combination we should get.  If I want to take advantage of this I need to act fast.  I know about the return policy (that's why we're choosing them) but I want to make the right start.

I have two major questions:

1.  I understand that natural latex is superior to blended.  My husband is 220 lbs and I worry about him bottoming out on a 9" mattress, but the 12" mattress in natural latex is more than we wanted to spend.  So if our budget forced a choice between the 9" in natural and the 12" in blended, which do you all think would be the better choice?

2.  I need quite a bit of firmess for my back and am tempted to go all firm even though I'm not heavy (135 lb).  But I also need pressure relief for my joints.  Which combination of layers would give me more support and pressure relief:  two firm layers, or an extra firm topped by a medium? 

Any and all insight and opinions are welcome - I'm really having a hard time with this.

Linda