Unspecified (multiple brands/components discussed) DIY Modular Mattress (latex/pocket-coil + replaceable toppers)
8/10
Community reports focus on modular DIY mattresses built from latex layers and/or pocket coils, with a common view that the support base can remain usable for many years. Durability appears dependent on materials: latex layers and coil bases are repeatedly described as long-lasting, while memory-foam/cheap foam tends to sag and lose comfort sooner.
