Monthly Star Charts

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NASA What's Up web page - videos, podcast and other cool stuff

Haven't Slept a Wink

In the September 17, 2007 issue of Newsweek, there is an article titled "Homeroom Zombies" which details the amount of sleep each night we currently believe to be necessary for optimal health and cognitive functioning.  The article reports that "teens need at least nine hours of sleep a night, though few get that much".  While the entire article makes interesting reading, below I've included  their table for the recommended hours of sleep, according to age.  How are you doing?

Age Natural Bedtime* Recommended Hours of Sleep Actual Hours of Sleep***
0-1 yrs. 7-8 p.m. 14-15 hrs.** 12.8 all days**
1-2 7-8 12-14** 11.8**
3-6 7-8 11-13** 10.3**
7-11 8-9 10-11 9.4
12-17 10:30-11:30 8.5-9.5 7.6 weekdays
8.9 weekends
18-54 10-12 7-8.5 6.8 weekdays
7.4 weekends
55-84 8-10 7-8.5 6.9 weekdays
7.5 weekends

*Refers to bedtime in the natural sleep-wake cycle. Actual bedtimes will vary.
**Includes day and nighttime sleep
***Based on Natl. Sleep Foundation (NSF) Surveys, 2003-2006
Source: NSF; Dr. J Owens