How many hours do adults sleep a day?

As long as adults can sleep before 1 1 and sleep for 7-9 hours every day, they can achieve the best sensory and physical functions.

Different age groups have different sleep time:

1, newborn: a newborn child, that is, a newborn, sleeps for about 20 hours every day. For the baby, a day is about 14 to 15 hours;

2. Teenagers and young adults: primary school students are teenagers, about eight hours to 12 hours, middle school students are about nine hours a day, and college students and adults are basically eight hours a day;

3. Older people: Older people aged 60 and over will sleep for about nine hours every day. If the elderly sleep less at night, they can make up for it at noon.

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References:

/lady.people.com.cn/n1/2017/0419/c10/92211.html. How many hours of sleep is the healthiest every day?