Various (community DIY / modular mattress systems) DIY Build-Your-Own Mattress (latex + coil modular layers)
7/10
Community consensus supports modular latex-and-coil mattresses as durable when the comfort layer can be swapped instead of replacing the full bed. Longevity claims are common for latex bases (multi-year to decade-scale), but results vary by foam type and topper replacement schedules.
