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age hours

newborns ( 0-2 months ) 12-18 hours

infants ( 3 - 11 mo 14-15 hours

toddlers ( 1-3 years ) 12-14 hours

preschoolers ( 3-5 years ) 11-13 hours

school - age - children ( 5-10 years ) 10-11 hours

teens ( 10-17 years ) 8.5-9.25 hours

adults 7-9 hours

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12y ago

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7-9 hours of sleep

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14y ago
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Q: How many hours of sleep does a nine year old need?
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