Various (community references: Arizona Premium Mattresses, Saatva, Silk&Snow, etc.) DIY modular latex mattress (latex base + removable toppers; pocket coil optional)
8/10
Community consensus favors latex-based, modular mattress builds because components can be replaced rather than discarding the whole mattress. Multiple users report multi-year to decade-scale use with sag localized to comfort layers (toppers).
