Number of hours of sleep that suit their individual ages, infants (1-2 months) 16-18 hours (sleep, waking several times a night and day).
Children aged 3-11 months, 14-15 hours (sleep, waking several times. night sleep-over)
Children aged 1-2 years 12-14 hours (sleep day and night, sleeping 1 to 3 hours).
Children aged 3-5 years, 11-13 hours (sleep night daytime sleep 1 to 2 hours).
Baby Primary (6 -8 years), 11 hours (a night).
children of primary school (9-11 years) for 10 hours.
Children secondary school (12-14 years) 9.25 h. a high school boy (15-17 years) to 8.5 hours. Adults 7 -8 hours
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