Community discussion (multiple brands referenced) Mattress (DIY/build-your-own latex or hybrid modular mattress)
8/10
Community reports that modular latex (latex base plus replaceable topper/layers) is the most durable approach, with users citing many years of continued comfort. Foam-based mattresses (especially cheaper memory foam) are more often reported to sag within 6–7 years, though some users report long service when foam is used as replaceable toppers over a firmer core.