How does Chapter 10 describe Sai Baba's unusual sleeping arrangements and what did they signify?

Chapter 10 provides a fascinating account of Sai Baba's sleeping habits. He would rest on a narrow wooden plank, merely four cubits long and one span wide, which was suspended from the rafters like a swing using old rags. The chapter emphasizes the mystery surrounding this, noting that his movements—when he ascended or descended from this precarious perch—were completely imperceptible to anyone. It is explained that this was not a simple feat but a demonstration of his great Siddhis (divine powers), suggesting the plank's physical support was secondary to His divine capabilities and that the plank was there "merely for name’s sake."