- Double layer EITROUG design: The foldable sleeping mat has an egg trough shape that helps trap air to prevent the insulation layer from flattening. It provides heat insulation and remains effective regardless of floor temperature after setup. The design also supports placing items on the surface and is suitable for cold weather. - Folding design: Thickness is about 2 cm (0.8 in) and size is about 186 x 57 cm (73.2 x 22.4 in). When opened, there is ample space for use. The foldable construction reduces storage space and makes it easier to carry when traveling. - Bubble sponge: Made of foam sponge with good elasticity, high toughness, durability, and tear resistance. It offers insulation to prevent body warmth from being lost to the cold floor. - Dark side orientation: The underside is black and environmentally friendly. The front and back are easy to distinguish; place the dark side toward the floor for a smooth surface. The arrangement is comfortable and practical. Use scenarios - Winter camping or outdoor gatherings on cold ground, where the mat provides insulation and a stable sleeping surface. - Everyday use on tile or hardwood floors at home for kids, guests, or quick naps. - Travel or car trips where the mat folds compactly for easy packing and transport.