The core component of memory foam pillows is polyurethane.
Memory foam is not ordinary industrial polyurethane foam; rather, it is a specially modified polyurethane material. During production, additives such as polyether polyols, blowing agents, and catalysts are incorporated to adjust the material's density and recovery speed, ultimately achieving the characteristic slow-rebound effect and the ability to conform to the contours of the human body.
Mainstream memory foam pillows on the market utilize this type of modified polyurethane as their base material. While a small number of products may incorporate minor amounts of other fibers or filling materials to enhance tactile feel, polyurethane remains the core component.
