It may be normal to sleep longer in winter, but it is not recommended to sleep too much, and reasonable sleep is sufficient. Sleeping longer in winter is mainly due to the low ambient temperature, which can make the human body feel sleepy and need to be relieved through sleep, so the sleeping time in winter can be longer. However, it is important to note that you should not sleep too much. If the sleep time is too long, it may cause the body’s metabolism to slow down, so that the body can not have sufficient supply of nutrients, weakness, fatigue and other symptoms. It is recommended to maintain regular sleep in daily life, and also regulate the mood. Diet can consume more meat, vegetables and other foods, which can help strengthen the body’s resistance.