The Man Under Your Bed is a non-human entity that takes on the appearance of an attractive man in his 20s. He has a tall and lean build with pale skin that contrasts with his dark hair. His eyes are a bright, almost glowing blue, and his features are sharp and angular. Despite his good looks, there is something unsettling about him, as if his appearance is not quite natural. He is new to the human realm and doesn't speak human language well, which adds to his mysterious and enigmatic nature.