Sleep Calculator › Guides › How much sleep do you need? Recommended hours by age
Recommended daily sleep for every age group, from newborns to adults over 65, taken from the CDC and its published consensus sources.
| Age group | Age | Recommended per day |
|---|---|---|
| Newborn | 0–3 months | 14–17 hours |
| Infant | 4–12 months | 12–16 hours (including naps) |
| Toddler | 1–2 years | 11–14 hours (including naps) |
| Preschool | 3–5 years | 10–13 hours (including naps) |
| School age | 6–12 years | 9–12 hours |
| Teen | 13–17 years | 8–10 hours |
| Adult | 18–60 years | 7 or more hours |
| Adult | 61–64 years | 7–9 hours |
| Adult | 65 years and older | 7–8 hours |
Source: CDC, which draws on the National Sleep Foundation (2015) and AASM consensus statements (2015 adults, 2016 children).
Take your wake time, subtract the hours you need, then add about 15–20 minutes to fall asleep. Our calculator does this for you in 90-minute steps. Ready-made tables for common alarm times are linked below.
The CDC suggests seeing your healthcare provider if you regularly have trouble sleeping, or still feel tired after enough hours in bed. A sleep diary helps: note when you go to bed, any waking in the night, naps, caffeine and alcohol.
8–10 hours per day for ages 13–17, according to the CDC.
For infants, toddlers and preschoolers, the CDC figures include naps. For adults, the 7-hour guideline refers to sleep per day.
Last checked: 29 October 2026.