Various (community discussion; e.g., Arizona Premium Mattresses / similar modular latex systems) DIY modular mattress (latex + pocket coil base + interchangeable toppers)
8/10
Community reports durability mainly when the mattress is built from latex components with replaceable comfort layers (toppers). Several users describe latex bases lasting many years and sinking limited to replaceable upper layers, while commodity memory-foam mattresses are described as sagging within ~6–7 years.
