How much sleep do you actually need?

 

你究竟需要多少睡眠时间？

 

Newborns (0-3 months ): Sleep range narrowed to 14-17 hours each day (previously it was 12-18)

 

Infants (4-11 months): Sleep range widened two hours to 12-15 hours (previously it was 14-15)

 

Toddlers (1-2 years): Sleep range widened by one hour to 11-14 hours (previously it was 12-14)

 

Preschoolers (3-5): Sleep range widened by one hour to 10-13 hours (previously it was 11-13)

 

School age children (6-13): Sleep range widened by one hour to 9-11 hours (previously it was 10-11)

 

Teenagers (14-17): Sleep range widened by one hour to 8-10 hours (previously it was 8.5-9.5)

 

Younger adults (18-25): Sleep range is 7-9 hours (new age category)

 

Adults (26-64): Sleep range did not change and remains¹ 7-9 hours

 

Older adults (65+): Sleep range is 7-8 hours (new age category)

 

The National Sleep Foundation suggests that the amount of sleep you need very much depends on your age.

 

Most young adults only need between seven and nine hours a night, but can get away with sleeping just six hours.

 

Teenager meanwhile need at least seven hours in bed, but can happily sleep for 11. School children are recommended to have between nine and 11 hours.

 

Older adults need five or six hours between the sheets but it is recommended they have between seven and eight.

 

Babies need a lot more sleep of course, lying in their cots for up to 19 hours a day.

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