Core Points - The article discusses the differences in winter experiences between northern and southern China, emphasizing the impact of humidity on perceived temperature [3][7][10] - It highlights the increasing average humidity levels in southern regions over the years, which contributes to a colder feeling despite higher actual temperatures [4][5][12] Humidity and Temperature Perception - The average relative humidity in eastern, southern, and southwestern China exceeds 70% during winter, while northern regions remain below 65% [4][5] - The "wet cold effect" in southern China leads to a significant difference in perceived temperature, with a potential 5°C difference under similar conditions [7][10] Clothing Recommendations for Southern Winter - The article suggests avoiding cotton clothing, particularly "夹棉睡衣" (cotton-padded sleepwear), due to its high moisture absorption, which exacerbates the cold feeling [10][12][15] - Recommended materials include synthetic fibers like polyester, which have low moisture absorption and better insulation properties [15][17] - A layered clothing approach is advised, with waterproof outer layers and insulating middle layers to retain warmth [17][23] Bedding and Sleeping Comfort - Suggestions for bedding include using synthetic materials that remain dry and warm, as well as regularly airing out bedding to reduce moisture [23][25] - The article emphasizes the discomfort of transitioning from warm clothing to cold bedding, highlighting the need for appropriate materials to enhance sleep quality during winter [23][25]