Community-recommended (no single brand) DIY modular mattress (latex foam base + replaceable topper)
8/10
Community feedback treats modular latex-based DIY mattresses as BIFL-leaning because the foundation is reported to last while only the comfort topper may need periodic replacement. Durability confidence is strongest for latex cores/top layers and weaker for all-foam commodity mattresses that show sag after ~6.5 years.