Warm and warm duvet cover that doesn't require a blanket

1 piece 2 roles! Even in the cold of midwinter, you can sleep soundly until morning without needing a blanket. ●Smart power saving measures! No need for heating! A duvet cover that doubles as a blanket. ●This one duvet cover can also be used as a blanket from fall/winter to early spring. ●For those who want to save energy and stay warm and safe without relying on electric blankets or heaters. ●One piece can serve as a blanket with just the cover, or as a warm futon with a futon inside. ●The specially processed aluminum sheet is breathable, so you can sleep comfortably without getting stuffy. ●Machine washable! Always clean and comfortable! ●Equipped with strings in 8 places to prevent the futon from slipping. ●Size: (approx.) Width 150 x Depth 210cm ●Weight: (approx.) 1.82kg ●Material/Front side: 100% polyester, Back side/Lining: 100% polyester, Filling: 100% polyester (with aluminum sheet) ●China Made