The patented fill within a standard My Pillow comprises shredded pieces of open-cell polyurethane foam. This material is specifically designed to interlock, creating a consistent and supportive structure within the pillow. The irregular shape of the shredded foam pieces allows for air circulation and adjustability, distinguishing it from traditional solid foam or fiber fills. For example, when the pillow is compressed, the interlocking pieces shift and conform to the user’s head and neck, providing personalized support.
The significance of this interlocking fill lies in its ability to maintain its shape and loft over time, resisting flattening and clumping that can occur with conventional pillow fillings. This characteristic contributes to improved sleep quality and reduced neck pain for many users. Historically, pillow fills have ranged from feathers and down to synthetic fibers, but the introduction of this specialized foam fill aimed to address common complaints about comfort and durability, representing a shift toward more engineered bedding solutions.