How many hours of sleep do we really need each day?
In today's busy and stressful world, sleep seems to have become a luxury that many people sacrifice for more time to work or relax. However, the question is: how many hours of sleep do we really need each day to maintain our physical and mental health?
According to health experts, the ideal number of hours of sleep varies throughout life. Newborns need 14–17 hours per day, while young children, schoolchildren, and teenagers also need more sleep than adults to support their physical and intellectual development. For example, teenagers in a period of rapid growth often need more than their parents, around 8–10 hours per day.
However, upon reaching adulthood, specifically from age 18 onwards, the American Academy of Sleep Medicine recommends that adults get at least 7 hours of sleep in every 24 hours. This recommendation is based on numerous studies showing that consistently sleeping less than 7 hours per night can lead to a range of health risks such as obesity, depression, high blood pressure, heart disease, and even stroke.
Everyone's sleep needs can be different.
However, the above advice is not an absolute rule. Each person's sleep needs can vary due to many factors, including genetics, health status, level of physical activity, and even psychological factors.
Some people may feel refreshed and alert after 6 hours of sleep, while others need up to 9 hours to feel truly awake. Conditions such as illness, prolonged stress, or pregnancy can also increase the need for rest.
Instead of focusing rigidly on a specific number, the National Sleep Foundation encourages people to listen to their bodies by asking simple questions such as: How do you feel after 7 hours of sleep – alert or groggy? Do you need a lot of caffeine to stay alert throughout the day? Does your job require a lot of physical exertion?
Sleep quality is an important factor.
Another important factor that is often overlooked is sleep quality. Getting enough sleep but having interrupted or shallow sleep may not yield the desired health benefits.
Poor sleep quality is also linked to serious health problems such as cardiovascular disorders, diabetes, obesity, and cognitive decline in old age. Conversely, deep, uninterrupted sleep helps the body recover, strengthens memory, regulates emotions, and boosts the immune system.
There's no single "standard" number for everyone when it comes to sleep. While guidelines recommend adults get at least 7 hours of sleep per night, what's more important is whether you feel fully rested and able to function effectively the next day.
Sleep is not just about the number of hours spent in bed, but also about the quality of each minute of sleep. Therefore, monitor your body, adjust your lifestyle, and prioritize sleep—it's the foundation for a healthy and active life.
