I am building a latex mattress for my travel trailer. I plan to store it in a temperature-controlled space while not using it for extended periods, but I would still like to know if there is a type of latex that does better in temperate and possibly humid environments? Also, would wool be the most protective ticking layer to prolong the lifespan in these conditions? Thank you so much for all the information on this site that’s lead me to this decision!
Hey Ever_Curious,
Welcome back to the TMU forum 
! Thanks for your question.
I wondered how things were progressing with your queen size latex mattress hunt to outfit your camper with. Were you able to chat with any of the trusted members we discussed in post #2? Back to your question, the majority of natural latex rubber is harvested from temperate/ humid countries, such as Thailand, India, Sri Lanka and Brazil, where the rubber is store for a period of time before processing into latex foam. The final product of natural latex foam is also stored in the originating countries for periods of time before container shipping to their next destinations of either a mattress manufacturer or consumer. Generally speaking, as long as you choose latex from a reputable manufacturer who is transparent about its sourcing and what certifications the latex carries, you should be assured of its quality. All the latex you are likely to encounter is either Oeko-Tex certified or Eco-Institut certified. The international GOLS/ Global Organic Latex Standard is more difficult to come by, as it requires the entire supply chain to meet organic standards.
Use of a wool protective ticking layer or other natural fiber materials when available in their best versions, will provide high-quality choices that are the most breathable, comfortable, and durable, and should help prolong the life of your new latex mattress. The manufacturer/ retailer would have suggestions based on the knowledge of their latex models and can guide you through cover selection as well. Thanks too for the kind words on the site and happy to hear that you’re finding the information helpful 
. Looking forward to your updates, Ever_Curious and good luck with your research.
Thanks,
Sensei