Various (DIY component makers discussed; Saatva Classic; Silk&Snow; Original Mattress Factory; Nectar; Purple; Sleep Number) Mattress (DIY modular latex or pocket-coil hybrid variants)
8/10
Community durability claims are concentrated around latex-based and modular mattresses where only the sagging layer is replaced. Multiple commenters report 6–10+ years of continued use with minimal degradation, though replacement/restacking still depends on comfort-layer wear and, for some, heat retention.
