The ultimate luxury. Not only does it feel incredible to sleep beneath but helps to retain skin and hair moisture reducing friction and frizz. This bed-linen collection is crafted in Portugal from a 19-momme Mulberry silk renowned for its hypoallergenic and temperature-regulating properties. It makes the ideal bedding material keeping you cool in the summer and warm in the winter. Strong yet supple it's got a lustrous sheen and feels ultra-soft to touch.All our silk is a luxurious 19 momme. Momme refers to the weight of silk - the higher the momme the heavier and more premium the silk.