Secondly, the filling material within the pillow affects the price. Some microfiber pillows are filled entirely with microfibers, while others may incorporate a blend of microfibers and other materials like memory foam or down alternative Some microfiber pillows are filled entirely with microfibers, while others may incorporate a blend of microfibers and other materials like memory foam or down alternative Some microfiber pillows are filled entirely with microfibers, while others may incorporate a blend of microfibers and other materials like memory foam or down alternative Some microfiber pillows are filled entirely with microfibers, while others may incorporate a blend of microfibers and other materials like memory foam or down alternativemicrofiber pillow price. The type and amount of filling contribute to the overall comfort and support, and thus, the pricing.