1.1. Comfortable fabric, suitable for all seasons: This sleeping bag is crafted from washed cotton fabric, offering comfort compared to ordinary materials. Its three layer design ensures softness, skin friendliness, durability, and warmth. The three dimensional stitching provides effective support, enhancing the sleeping bag's strength and resistance to tearing. With breathability and moisture wicking properties, it allows absorbed moisture to escape, making it ideal for year round use. 2.2. Three layer structure Filled with cotton thread, the surface features washed cotton fabric, while the bottom is equipped with a non slip particle layer. This construction makes the sleeping bag more comfortable, softer, and longer lasting than those with solid cotton filling. 3.3. Ergonomic Design Designed to follow the natural curves of the human body, this sleeping bag offers slow rebound support. The bed sheet is wrapped with down gauze and cotton filling, providing soft yet resilient support for the upper body, allowing your body to relax naturally and ensuring a more comfortable sleep. 4.4. Gentle Body Support The generous thickness of this sleeping bag prevents the sensation of sinking, eliminating discomfort such as pain or cold during sleep. The plush, generously filled material delivers a fluffy and soft feel, gently cradling your body with just the right amount of rebound for an exceptionally comfortable cushioning experience.