First of all, sleeping with a thick quilt will make people feel oppressive, unable to relax, and unable to sleep well; Secondly, there are few windows in winter, and the indoor oxygen content is relatively small. The thick quilt is pressed on the chest, which will cause slight hypoxia; The thick quilt contains a lot of dust, which will cause certain damage to the respiratory mucosa when inhaled into the respiratory tract, especially for people with lung diseases, which are more likely to cause disease recurrence; Thick quilts are airtight. Although it is warm at night, it will also open pores and make it easier to get cold when you get up the next day.
It is best to cover a wool quilt or a duvet in winter. Wool is moisture-absorbing and breathable, with high warmth retention and good elasticity, and it is not easy to generate static electricity, so it is very suitable for people who are afraid of cold, weak and sweaty in winter. However, duvets are light and soft, with good hygroscopicity and sweat permeability, and there will be no oppressive feeling. They are suitable for all kinds of people, especially hypertensive heart patients, people with poor blood circulation, the elderly, children and pregnant women. It is best to choose goose down quilt with down rate above 50%. If it is not warm enough to cover a goose down quilt alone, you can add a thin blanket on it.
In addition, the air circulation is poor in winter, so don't cover your nose and mouth with a quilt at night to avoid poor breathing; Embrace your knees around your body to avoid air leakage; Don't expose your shoulders and limbs to avoid catching cold. Sleeping naked is not recommended in winter, but pajamas should not be too thick, otherwise it will affect comfort. It is recommended to choose loose and fat pajamas, which is beneficial to muscle relaxation and blood circulation. The fabrics are mainly natural fabrics, such as cotton and knitted fabrics with good air permeability and moisture absorption.