Hello,

Was working on a custom home built Foam/Latex Layered Mattress.

Maybe the comfort layer would be 2" too  soft. Sleepers weight on the mattress is 155lbs per person

From bottom core up to top comfort layer:

2" Foamex HR 35(ILD) from Perfect Fit
3" Latex Topper 32(ILD) from Foam by Mail
2" Foamex Energia  24(ILD) from local source
2" Latex Topper 20(ILD) from Foam by Mail
3" Memory Foam 5.3 13(ILD) from Cloud9 Bedding

     Energia can be used as a mattress core component and is not like traditional memory foam. I think it's best described as a cross between latex and memory foam.
Cloud9 Memory Foam 5.3 Topper is fairly firm. Cloud9 5.3 density 3" can be used on the floor, alone if you weight under 160.
I'm not worried about it sinking alone but perhaps with 2" of latex combined, would be too soft?

    I have never felt latex except in the mattress store. Those were all full latex mattresses and fully covered.
A variant I was considering....removing the 2" Latex 20(ILD) from the comfort layer and adding 2" 43(ILD) Foamex HR foam to firm up the base.
But I would love to check out FBM 2" 20ILD on top of the memory foam.

I could use some feedback from anyone about this mattress. People with flobeds or FBM latex. Any opinions would be really appreciated.

Thanks for any information or opinions,

Matt B.