Long-term sleep deprivation has serious health risks — but they can be reversed, says expert

A woman lies in bed with her hands covering her face, looking upset due to sleep deprivation. A Tom's Guide Sleep Week 2025 graphic, bottom left.

Good sleep is essential for good health, and long-term sleep deprivation negatively impacts both your mental and physical wellbeing. It can even make you lonely.

But bad sleep can be hard to avoid, so is it possible to reverse the effects of long-term sleep deprivation?