Multiple retailers mentioned (e.g., Arizona Premium Mattresses); specific brand not consistently identified DIY modular latex mattress (pocket coil base + latex layers)
8/10
Community consensus favors modular latex mattresses for longevity because the latex base is reported to outlast comfort layers, reducing whole-mattress replacement. Reliability is described as strong over roughly 6–10+ years, with sag typically localized to toppers/layers rather than the entire system.
