She gets up at 9AM and she needs to start lazing and winding down by 10PM. She cannot read a clock but she is tuned to the messages of her body. It does not matter how the day went or what she had to deal with, it’s difficult to mess with her work-rest cycle.
In the midst of the rigor of work and life, we fail to honor the cycle of night and day. Our bodies tell us when to rest and we need to pay heed, not ignore it on the pretext of the busyness of life.