Multiple (DIY/custom components; community references Arizona Premium Mattresses, SavvyRest) DIY Modular Mattress (latex + coil base + replaceable toppers)
8/10
Community consensus favors modular latex-and-coil mattresses because individual layers can be replaced instead of discarding the whole bed. Longevity claims are strongest for latex base components and for toppers that can be swapped after several years.
