Our silk pillows use silk floss filling in the form of stacked thin sheets of tangled silk threads. The nature of the filling and the unusually strong silk fibers in the silk floss means that:
1. It is unlikely that the filling inside the pillow shell moves around and clumps together to give the pillow an uneven shape.
2. It is difficult for the silk threads in the filling to succumb to pressure and deform, allowing the pillow to regain its original shape once pressure is removed.
Of course, silk fibers are not immune to deformation and will eventually change in the pillow‘s shape. But this process is very slow and can take 5-10 years.