The Gingerlily all-seasons weight duvet is ideal for most people all year round. It's light enough for those long summer nights, yet the silk floss filling provides enough warmth for use in colder winter months. It's filled with the finest quality pure long strand mulberry silk floss, which helps to regulate your body temperature while you sleep. Naturally hypoallergenic, silk is the natural bedding choice for those with sensitive skin and allergies. All Gingerlily duvets feature buttons and small ties on the sides and corners so they can be easily partnered with either a summer-weight duvet or a winter-weight duvet for a tailored level of warmth. Ties can also be used inside the duvet cover to keep the duvet in place.