How much sleep do humans need?

The amount of sleep humans need can vary depending on factors such as age, individual differences, lifestyle, and overall health. However, the National Sleep Foundation provides general guidelines for recommended sleep durations based on age groups:

1. Newborns (0-3 months): 14-17 hours per day, including naps.

2. Infants (4-11 months): 12-15 hours per day, including naps.

3. Toddlers (1-2 years): 11-14 hours per day, including naps.

4. Preschoolers (3-5 years): 10-13 hours per day, including naps.

5. School-age children (6-13 years): 9-11 hours per day.

6. Teenagers (14-17 years): 8-10 hours per day.

7. Young adults (18-25 years): 7-9 hours per day.

8. Adults (26-64 years): 7-9 hours per day.

9. Older adults (65+ years): 7-8 hours per day.

It's important to note that these are general recommendations, and individual needs may vary. Some people may feel well-rested with slightly more or slightly less sleep than the recommended range. Additionally, the quality of sleep is just as important as the quantity, so factors like sleep environment, sleep disorders, and sleep hygiene practices also play a significant role in determining how rested a person feels. If you have concerns about your sleep patterns or quality of sleep, it's best to consult with a healthcare professional.