I heard Sai Baba's Udi can help with sleep problems. What does the Satcharita say about this?

Chapter 33 of the Shri Sai Satcharita provides two clear examples of Udi curing sleeplessness. In one instance, a friend of R. Hari Sitaram Dixit had been unable to sleep for eight days despite taking a doctor's medicine. Dixit gave him Maharaj's Udi and told him to take it for three days. The very next day, the friend reported that he had slept soundly through the night after taking the Udi. The chapter also mentions another case of a child from Bandra who had not been able to sleep for two months. His father took him for Maharaj's Darshan in Shirdi, and that very night, the child got sleep, and the issue was resolved from then on.