How does Chapter 10 describe Sai Baba's sleeping arrangements, and what does this suggest about his abilities?

Chapter 10 provides a fascinating description of Sai Baba's sleeping habits. He would sleep on a very narrow wooden plank, only about one span (or nine inches) wide and four cubits long. This plank was suspended from the rafters like a swing, tied at both ends with old rags. Despite this precarious setup, Baba would sleep soundly with lamps burning at his head and feet. The text emphasizes that his movements were imperceptible; no one ever saw him get on or off the plank. This miraculous feat, as explained in Chapter 10, was possible due to the Great Siddhis (powers) residing within him, suggesting the physical support of the plank was merely nominal.