Standard Thickness Levels
- 15cm – Entry level support
- 20cm – Standard adult support
- 25cm+ – Premium orthopaedic support
Higher thickness improves support and pressure distribution for heavier sleepers.
Source: Sleep Foundation: Mattress Firmness
Support & Body Weight
Heavier individuals benefit from thicker, higher-density foam cores (33 kg/m³+).
Source: Sleep Foundation: Mattress Density
Density & Structural Integrity
Thickness must be paired with adequate density. A thick mattress with low density will sag prematurely.
Source: Sleep Foundation: Mattress Lifespan
Research Insights
Sleep ergonomics research confirms thicker high-density mattresses provide improved spinal alignment and pressure distribution.
Source: Sleep Foundation: Best Mattress for Back Pain