Can you describe Sai Baba's unusual sleeping arrangement mentioned in Chapter 10 and what it reveals about him?

Chapter 10 details Sai Baba's very peculiar sleeping arrangement. He would sleep on a narrow wooden plank, described as being four cubits long but only one span (about 9 inches) wide. This plank was not on the floor but was suspended from the rafters like a swing, tied at both ends with old rags. The text highlights that Baba would sleep on this precarious perch, often with lamps burning at his head and feet. It is explicitly mentioned that his movements—when he got on or off the plank—were imperceptible, as no one ever witnessed them. The chapter suggests this was not a matter of physical balance but a display of his Great Siddhis (powers), indicating the plank was "merely for name’s sake" and couldn't have supported him by normal physical laws.