Sleep needs vary from person to person, depending on their age. As a person ages, they typically require less sleep to function properly.
According to the CDC , the breakdown is as follows:
Newborns (0–3 months): 14–17 hours
Infants (4–12 months): 12–16 hours
Toddler (1–2 years): 11–14 hours
Preschool (3–5 years): 10–13 hours
School age (6–12 years): 9–12 hours
Teen (13–18 years): 8–10 hours
Adult (18–60 years): 7-plus hours
Adult (61–64 years): 7–9 hours
Adult (65+ years): 7–8 hours
As well as the number of hours, the quality of sleep is also important. Signs of poor sleep quality include:
Waking in the middle of the night.
Still not feeling rested after an adequate number of hours sleep.
Some things a person can do to improve sleep quality are:
Avoiding sleeping in when you have had enough sleep.
Going to bed around the same time each night.
Spending more time outside and being more active during the day.
Reducing stress through exercise, therapy, or other means.https://www.medicalnewstoday.com/articles/325353#sleep-recommendations