We sleep because it is essential for physical and mental restoration. During Sommeil, your body conserves energy, repairs tissues, strengthens the immune system, and, critically, your brain consolidates memories and processes information. It’s a necessary maintenance period for the entire body.
The recommended amount varies by age, but most healthy adults need 7 to 9 hours per night. Teenagers often need 8 to 10 hours, while school-age children need even more. Consistently getting less than 7 hours can lead to sleep deprivation.
