Hi pennies,
Thanks for the update.
I’ve never tasted latex so I don’t know what it’s supposed to taste like and while it’s certainly safe for sleeping … I don’t think I would consider it particularly healthy to eat 
[quote]The mattress feels useable for now but we are both feeling a lot of pressure under the shoulder /high back area. And a little bit in the middle back/curve of spine /just above hips.
Im thinking a soft topper is not the answer but maybe ours failed as it was more than we needed being 3 inches.
My question is what to do now. Im thinking we need a small change, something to add a bit of extra support and also softness in some spots
option 1. a thinner talalay topper
option 2. a wool topper
Im just wondering if one wold work better. [/quote]
If a 3" soft latex topper was too soft for you it would make sense that a thinner soft latex topper would probably be a better “match” for you in terms of overall firmness and PPP (Posture and alignment, Pressure relief, and your own Personal preferences) than the 3" topper. There is more information about choosing a topper in post #2 here and the topper guidelines it links to that may be helpful.
There is also more information about wool toppers and how they compare to various foam or latex toppers (at least in very general terms) in post #8 here and in posts #3 and #6 here and there are some additional comments about wool toppers and a list of some of the better sources I’m aware of in post #3 here.
Unfortunately the only way to know for certain whether one would work better for you than the other will be based on your own personal experience when you sleep on it.
Phoenix