Hi Hazard,
Thanks for taking the time to share your initial comments and feedback in such detail … I appreciate it :).
Your experience with the “unique” combination of the firmer “feel” but good support and pressure relief of latex is fairly common and can be surprising to many people that aren’t familiar with it.
Your comments about assembling your mattress and “waving” the layers into position (and not being sure that the layers will fit) are also common with latex component mattresses as well.
I don’t know either and the only one they list on their site is the platinum protector here which is probably the one they sent you by mistake. Some of the more common cotton/wool protectors are listed in the mattress protector post here and I would be interested in finding out which one they sell.
I’m looking forward to any additional feedback you have the chance to share.
Phoenix