My mattress is uniform but analyze: should I use zone-based support? Map the body zones: shoulders, hips, lower back need different firmness. Calculate: if I added toppers for zoned firmness, would pressure points and alignment improve? Show me the zone strategy: these areas need this firmness. Give me the implementation: toppers or mattress with zoned support. Include: whether uniform firmness is suboptimal, how to create zones, and if this would help my pain issues.