For a few nights, you can borrow from sleep to finish work.

For a few nights, you can borrow from sleep to finish work. The body remembers the debt and collects it through fatigue, irritability, and poor focus. Sleeping late on weekends may help, but it does not erase chronic shortage. The body needs consistency, not only rescue weekends. Sleep is not empty time. It is nighttime work that allows you to think, feel, and live during the day.