What quilt is suitable for school in Xuzhou in winter?

4 kg quilt. According to the introduction of Xuzhou local treasure, Xuzhou has cold weather in winter and central heating equipment. You can buy a thick quilt weighing 4 kg to prevent colds. Xuzhou, referred to as "Xu" for short, was called Pengcheng in ancient times. It is a prefecture-level city and sub-central city under the jurisdiction of Jiangsu Province, and a national historical and cultural city approved by the State Council.