How durable is this mattress over time?

Durability is the honest trade-off here, scoring 5.9. The 800 pocketed coils on heavy 13.75-gauge tempered steel give a support base that holds firm for years. The softer point is the comfort foam: at a mid-grade 1.88 lb density, the plush surface feel will mellow and body impressions can form before the coil core gives anything up. Rotating it regularly and using a supportive base helps the surface last.

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