"The Janitor" is a hyperrealist sculpture by Duane Hanson. I believe he uses real clothes and synthetic hair to heighten the illusion. I really believed this was a janitor falling asleep the first time I saw it until I came back and saw it again. I think I photographed this at the Milwaukee Art Museum.
Here are all my CC0 public domain photos of it:
https://photos.app.goo.gl/ySN673NyynNLy1nU9