He didn't arrive with a crisis. There was no single moment when cycling stopped. It was quieter than that, a slow drift away from something that used to be woven into the fabric of his days.
Sleep is when your body does its quiet, essential work. Cells repair. Memories consolidate. Your nervous system processes the day. Hormones reset. None of this happens properly if sleep is shallow, broken, or simply not enough.
One of the most common questions I hear from people considering hypnotherapy is: "How many sessions will I need?" It is a completely understandable thing to want to know.