Ideal for those who prefer a flatter pillow, they are naturally hypoallergenic and therefore recommended for asthma and allergy sufferers. This luxury pillow will keep your head at a constant ideal temperature throughout the night. It also retains moisture of your skin and hair and has 50% less friction to reduce sleep lines, wrinkles, hair breakage and hair loss. Pair with a 100% silk filled duvet for perfect night's sleep Casing: 100% pure Mulberry silk Filling: 100% pure long strand mulberry silk Available in Standard, Queen, Kids and Travel sizes * Product care: Providing you use a removable washable cover, your 100% silk filled pillow should almost never require washing. Our silk filled pillows are both naturally hypoallergenic and antimicrobe as the silk floss filling is free from dust mites. To keep your pillows in the best possible condition, we would recommend that they are aired once or twice a year during the warmer months, on a line outdoors. Please always check the care instructions on the label. Spot clean: Use a special stain remover to clean minor marks For further information, please see our care guide here. 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.