The appropriate sleep time depends on minors and adults:

The appropriate sleep time for minors

Newborns. Newborns have not yet formed a relatively constant biological clock, so it is difficult to distinguish between day and night. The recommended sleep duration per day is: 1-week-old newborns sleep 16-17 hours a day; 1-4 months, sleep 14-16 hours a day. Newborns should not sleep less than 11 hours a day, otherwise their normal development will be affected.

baby. Babies sleep longer than newborns. Generally, babies aged 4-12 months sleep for 12-16 hours every day. At this time, parents should help their children keep a regular nap, and sleep for no less than 1 hours every day, otherwise it will affect their normal development.

infants and preschool children. At this stage, children are more active and sleep is more important for their growth. Children aged 1-2 are recommended to sleep for 12-14 hours a day; 3-5 years old, the recommended sleep time is 11-13 hours a day.

primary school students. After children go to primary school, only when they get enough sleep can they ensure the activity and learning efficiency of the day. Therefore, it is suggested that children aged 6-12 should sleep for 9-12 hours every day, not less than 8 hours, otherwise it will seriously affect the learning efficiency.

middle school students. At this stage, children are still in the period of growth and development, the pressure of study is gradually increasing, and the sleep time is relatively reduced. Children aged 13-18 should sleep for 8-1 hours a day, less than 7 hours, which will lead to inattention and reduced exercise, seriously affecting learning efficiency. ?

The suitable sleep time for adults is

18-59 years old: 7-8 hours (but it should not be less than 9 hours)

6-7 years old: 5.5-7 hours (some experts think that the elderly should sleep for more than 9 hours)

Let the age be x, and the optimal sleep time y approximately satisfies y = 21-6x . However, some experts suggest that the elderly need longer sleep than adults because of the weakness of qi and blood, so there is y = 22-7x .3+x/5.6. In this function, the sleep time of people over 6 years old is increasing.

expanding data

methods to speed up falling asleep

(1) self-relaxation training

a psychological relaxation method. Lie in bed, close your eyes and breathe naturally. Then focus on your hands or feet, and your whole body muscles are extremely relaxed, and experience the degree of muscle relaxation with a sense of heaviness. Say the sentences that suggest to yourself: "My feet are getting heavier and heavier", "My lower limbs are getting heavier and heavier" ...... "My whole body is getting heavier and heavier".

As soon as you realize the idea that has nothing to do with the heavy feeling of limbs, you should stop immediately and focus on the experience of heavy feeling of hands and feet. Patients can generally relax and fall asleep during the practice. Persist in training this method for a period of time and have good results.

(2) Music therapy

If you relax, you can sleep peacefully. Before going to bed, a soft and monotonous music may have a certain effect. Listening to good music makes people relax and feel the warmth of home, such as Kenny·G's saxophone "Go Home".

It's like a child sitting in an old pagoda tree enjoying the cool summer night and listening to an old grandmother telling a beautiful fairy tale, or it's like a beach in the sun, which makes people feel relaxed, forget their troubles for a while, and then sleep peacefully.

Reference: Baidu Encyclopedia-Sleep Time