How much deep sleep do you need and are you getting enough? Here's how to tell

The image shows a man lying on his back in bed, left arm his thrown above his head, sleeping deeply. His bed sheets are light blue.

Many things go into getting a good night’s rest — including getting enough deep sleep. While “deep” and “quality” sleep might sound interchangeable, deep sleep is actually one of the four sleep stages, and it’s arguably the most important stage of non-REM (NREM) sleep.

Deep sleep is famed for being the most restorative stage of stage and where important repair and recovery processes take place. But now that you know how important it is, are you aware of how much you actually require?