The National Sleep Foundation has made recommendations for sleep duration for various age groups based on a literature review by an expert panel. The following recommendations on sleep durations for healthy people without sleep disorders were published in Sleep Health:

• Newborns: 14–17 hours a day (previous recommendation: 12–18 hours)

• Infants: 12–15 hours (previously, 14–15)

• Toddlers: 11–14 hours (previously, 12–14)

• Preschoolers: 10–13 hours (previously, 11–13)

• School-aged children: 9–11 hours (previously, 10–11)

• Teenagers: 8–10 hours (previously, 8.5–9.5)

• Young adults (up to age 25): 7–9 hours

• Adults (26–64 years): 7–9 hours

• Older adults (65+): 7–8 hours