The original ad
wearable sleeping bag
A type of sleeping bag that, as the name suggests, can be worn like a clothing item and allows the wearer to walk around due to the leg protrusion.
Originally, it was a meme attire in the Japanese community due to a magazine ad featuring a man wearing the sleeping bag while walking in a peculiar pose. In later times, however, it is often mistaken as a reference to the Crewmate from Among Us due to their strikingly similar appearance, especially with the wearer appearing as if they have no arms.
Examples
