From Awake to Asleep: A Guide to Quick Sleep and Recovery

https://blogfreely.net/saelirbyelvinmfhm/low-magnesium-and-severe-night-cramps-signs-to-observe

The first night after an extended period of wakefulness can feel akin to standing on the edge of a precipice. The body yearns for rest, the mind is filled with racing thoughts, and time seems to move in reverse