Introduction

Choosing head support requires a clear understanding of the physical behavior of materials used in modern pillows. Many synthetic products tend to yield under body thermal load, creating areas of calcareous accumulation and limited breathability.

Technical selection criteria

Volumetric density and air permeability represent the two decisive factors in determining the durability of an elastic structure for daily use.

• Elastic resilience: the material's ability to return to its nominal height without delay or structural breakdown.
• Honeycomb structure: presence of continuous channels to facilitate air circulation during rest.
• Plant-based origin: absence of volatile organic solvents in the molding compounds.

Common evaluation errors

Relying solely on surface softness often leads to purchasing products that provide no resistance to gravity, flattening the cervical spine overnight.

Laboratory recommendations

An anatomical support with a calibrated curve and a density of at least 65 kg/m3 delivers a steady, long-lasting response across all seasons.