Can you describe Sai Baba's unusual sleeping arrangement on the wooden plank as detailed in Chapter 10?

Chapter 10 provides a detailed description of Sai Baba's peculiar sleeping arrangement. He would rest on a wooden plank that was four cubits long but only one span (about nine inches) wide. This narrow plank was not on the floor but was suspended from the rafters of the mosque, hung at both ends by old rags, much like a swing. The chapter also notes that lamps would be kept burning at His head and feet while He slept on this precarious structure. A key point emphasized is that his movements were imperceptible; no one ever saw when He climbed onto the plank or when He got down from it.