How did Sai Baba sleep, and what did Chapter 10 say this revealed about his powers?

According to Chapter 10 of the Shri Sai Satcharitra, Sai Baba's sleeping arrangement was extraordinary. He would sleep on a narrow wooden plank, merely one span (about 9 inches) wide and four cubits long, which was suspended from the rafters with old rags. The chapter notes that lamps would burn at his head and feet as he slept. His ability to get on and off this precarious plank without anyone ever seeing him was considered a testament to his divine nature. The text explains that this was possible due to the Great Siddhis (powers) residing within him, suggesting the plank was merely a prop. It specifically mentions the power of 'Anima,' the ability to become minute, allowing his movements to be as imperceptible as those of flies or ants.