Various (Arizona Premium Mattresses cited by users; other DIY components referenced) DIY Modular Mattress (latex + pocket coil hybrid)
8/10
Community reports suggest latex-based modular mattresses can have strong longevity, mainly because sagging often localizes to replaceable comfort layers (toppers). Memory-foam and generic packaged options show more complaints about heat and mid-bed sag over time, lowering confidence in lifespan for those builds.
