Humans typically spend up to 20% of their night in deep sleep, which occurs multiple times throughout the sleep period. During deep sleep, the body strengthens muscles, bones, tissues, and the immune system. However, factors like insomnia, stress, and aging can affect the duration of deep sleep.
Deep sleep, also known as slow-wave sleep, is the third stage of non-REM sleep. It is characterized by slow brain waves and is crucial for physical and mental restoration.
The amount of time spent in deep sleep varies depending on individual factors such as age, health, and sleep quality. However, it is a vital stage of sleep that contributes to overall health and well-being.
