Hi mattressnewbie777,
It may be a better idea to give them a call directly rather than communicating through the forum since this is not their own site and if they don’t specifically come here and happen to see your post they won’t be able to respond.
The usernames here are also anonymous so they wouldn’t know who you are.
I think it’s safe to assume that if you sent an email on October 9th and you haven’t received a reply that either your original email or their reply has gone astray.
You can see the specs of the PLB mattresses here. Their firmest mattress (the Pamper) uses 2" of 21 ILD latex over a 40 ILD support core and their second firmest (the Nature) also uses 2" of 21 ILD over a 2" layer of 28 ILD over a 36 ILD support core. While firmness is very subjective and relative to each person’s perceptions … most people would find both of these mattresses (even the Pamper) to be softer than the firmest Bamboo Bliss which has about an inch of softer quilting foam and wool and then a 3" 44 ILD comfort layer on top of the support core.
Phoenix