The silk-filled pillows are only filled with silk floss made from the best quality long stranded Mulberry silk to ensure fluffiness, volume and of course, heat insulation. Naturally hypoallergenic and thermal adjusting, our pillows are suitable regardless of weather and temperature, providing you with great comfort and health benefits, keeping you sound asleep at night and fully rejuvenated in the morning. Our Perlasilk pillows and silk pillowcases, which are the beauty sleep’s secret weapons, keep our precious blowouts intact and our skin ultra-soft. Please kindly note that silk pillows are thinner than usual pillows, which is better for your cervical vertebra. Before using the silk pillow, we advise you to flap it to make it fluffy. To keep its filling power, please flap the pillow regularly.