Sleep is one of the most important aspects of our health, yet many of us don't get enough. The amount of sleep you need changes throughout your life, and understanding these requirements can help you prioritize rest and improve your overall well-being.
The National Sleep Foundation provides the following guidelines:
| Age Group | Age Range | Recommended Sleep |
|---|---|---|
| Newborns | 0-3 months | 14-17 hours |
| Infants | 4-11 months | 12-15 hours |
| Toddlers | 1-2 years | 11-14 hours |
| Preschoolers | 3-5 years | 10-13 hours |
| School-age | 6-13 years | 9-11 hours |
| Teenagers | 14-17 years | 8-10 hours |
| Young Adults | 18-25 years | 7-9 hours |
| Adults | 26-64 years | 7-9 hours |
| Older Adults | 65+ years | 7-8 hours |
Sleep is essential for various brain functions, including how nerve cells (neurons) communicate with each other. In fact, your brain and body stay remarkably active while you sleep. Recent findings suggest that sleep plays a housekeeping role that removes toxins in your brain that build up while you're awake.
Sleep is involved in healing and repair of your heart and blood vessels. Ongoing sleep deficiency is linked to an increased risk of heart disease, kidney disease, high blood pressure, diabetes, and stroke.
Sleep deficiency alters activity in some parts of the brain. If you're sleep deficient, you may have trouble making decisions, solving problems, controlling your emotions and behavior, and coping with change. Sleep deficiency has also been linked to depression, suicide, and risk-taking behavior.
Sleep deficiency also increases the risk of obesity. For example, one study of teenagers showed that with each hour of sleep lost, the odds of becoming obese went up. Sleep deficiency increases the risk of obesity in other age groups as well.
Our Sleep Calculator can help you determine the best times to go to bed and wake up based on 90-minute sleep cycles. Simply enter your desired wake-up time, and the calculator will suggest optimal bedtimes that align with the end of your sleep cycles.
Find your perfect bedtime and wake-up time based on sleep science.
Use Sleep CalculatorYou may not realize you're sleep deficient. Here are some signs to watch for:
Understanding how much sleep you need is the first step toward better rest. Use the recommended guidelines above as a starting point, and listen to your body. If you're consistently feeling tired during the day, you may need to adjust your sleep schedule.
Remember, quality matters as much as quantity. Our Sleep Calculator can help you optimize your sleep timing to wake up feeling refreshed and energized.