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Each person, each age needs to have enough sleep duration is differentThe baby sleeps for 16 hours every day, at least from 3 to 12 years old children need to sleep 10 hours a day from the age of 13 to 18 to about 10 to 19 years old, every day to 8 ti ng 55, 65 Tu I on at least 6 ti ng every day.
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