What were the unusual details about Sai Baba's sleeping arrangements as described in Chapter 10?

Chapter 10 provides a fascinating description of Sai Baba's unique sleeping habits. He would sleep on a very narrow wooden plank, described as being only four cubits long and a mere span, approximately nine inches, wide. This plank was suspended from the rafters of the mosque, hung like a swing by old rags tied at both ends. Adding to the mystery, lamps were kept burning at both His head and feet while He rested on this precarious bed. The text emphasizes that no one ever saw Him get on or off the plank, highlighting the imperceptible nature of His movements.