Sleep on Latex Mattresses
Personal
This my choice for now. The Mattress industry is notorious for scams and misinformation. It's intentionally confusing. Just look at the top posts of the Mattress SubReddit. If you're not building your own Mattress, buying a Latex one is the general consensus. Sleep on Latex is a good choice, as are Latex Matresses from Costco & Ikea.
Warranty
Limited
Sleep On Latex warrants that it will, at its option, and at its expense, repair or replace this mattress should it be determined to contain a defect which is covered by the terms of this Limited Warranty. This Limited Warranty lasts for a period of ten (10) years, with such time dating from the date of the product purchase as noted as your sales slip or as may be otherwise evidenced by appropriate documentation. Proof of direct, authorized purchase is required with all warranty claims. This warranty applies only to The Pure Green Latex Mattress and is not extended to other products in the Sleep On Latex product line.