Unspecified (community discusses building from latex + coil base + replaceable topper layers) DIY modular latex-and-coil mattress (component-based build)
8/10
Community sentiment is strongly favorable toward modular DIY mattresses using latex and/or pocket coils because sagging is localized to replaceable comfort layers. Multiple users report long service lives (6–10+ years) and expect future longevity by swapping toppers rather than replacing the whole mattress.
