Table 1.

Normal sleep parameters in children and adolescents

Age	Total sleep time	Naps (on average)
0–2 months	16–18 h	3.5 per day at 1 month of age
2–12 months	12–16 h Most children aged 6–9 months sleep throughout the night	Two per day at 12 months of age
1–3 years	10–16 h	One per day at 18 months of age
3–5 years	11–15 h	50% of 3-year-olds do not nap
5–14 years	9–13 h	5% of whites and 39% of blacks nap at 8 years of age
14–18 years	7–10 h	Napping at this age suggests insufficient sleep or a possible sleep disorder