Ηλικία Νυχτερινός ύπνος Ημέρας Ύπνος Μέσος όρος ύπνου
2 years 10.5 to 12.5 hours 1 to 3 hours (1 nap) 11.5 to 15.5 hours
3 years 10.5 to 12.5 hours 1 to 3 hours (1 nap) 11 to 14 hours
4 years 10 to 12 hours 0 to 2.5 hours (1 or no nap) 10 to 13 hours
5 years 10 to 12 hours 0 to 2.5 hours (1 or no nap) 10 to 12.5 hours
6 years 10 to 11.5 hours none 10 to 11.5 hours
7 years 9.5 to 11.5 hours none 9.5 to 11.5 hours
8 years 9.5 to 11.5 hours none 9.5 to 11.5 hours
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