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2. Start school later movement - Wikipedia

   en.wikipedia.org/wiki/Start_School_Later_movement

   However, a 2010 study found that students' overall sleep times increased significantly after a half hour delay in start times. Before the shifted schedule only 16.4% of students reached 8 hours of sleep; after the implementation of the delayed start time 54.7% of students reached 8 hours of sleep. [30]

3. Sleep efficiency - Wikipedia

   en.wikipedia.org/wiki/Sleep_efficiency

   Sleep efficiency (SE) is the ratio between the time a person spends asleep, and the total time dedicated to sleep (i.e. both sleeping and attempting to fall asleep or fall back asleep). It is given as a percentage. [1] SE of 80% or more is considered normal/healthy with most young healthy adults displaying SE above 90%.

4. National Sleep Foundation - Wikipedia

   en.wikipedia.org/wiki/National_Sleep_Foundation

   NSF Sleep Duration Recommendations Chart developed based on NSF's research paper [3] In 2015 NSF released the results of a research study on sleep duration recommendations. [4] The paper titled "National Sleep Foundation's sleep time duration recommendations: methodology and results summary" was published in the peer-reviewed Sleep Health ...

5. Paid Sleep Studies: How Much Can You Make? - AOL

   www.aol.com/finance/paid-sleep-studies-much...

   Many sleep studies focus on potential treatments for specific conditions. ... you may be eligible for studies like one at Harvard Medical School that pays up to $900 for a single one-hour ...

6. Do you really need 8 hours of sleep every night? Sleep ... - AOL

   www.aol.com/news/really-8-hours-sleep-every...

   Healthy adults need to sleep at least seven hours a night on a regular basis for optimal health, according to the American Academy of Sleep Medicine. So for most people, eight hours is enough. So ...

7. Hypnogram - Wikipedia

   en.wikipedia.org/wiki/Hypnogram

   Cycles of REM and non-REM stages make up sleep. A normal healthy adult requires 7–9 hours of sleep per night. The number of hours of sleep is variable, however the proportion of sleep spent in a particular stage remains mostly consistent; healthy adults normally spend 20–25% of their sleep in REM sleep. [5]

8. ‘Sleep Revolution Cheat Sheet’ by Huffington Post

   testkitchen.huffingtonpost.com/sleep-revolution...

   sleep quotes. sleeping in. your body on sleep loss. sleeping in on weekends. health . world sleep day. overtired and sick. sleep deprivation . teens and sleep. sleep ...

9. Sleep deprivation - Wikipedia

   en.wikipedia.org/wiki/Sleep_deprivation

   A 2004 editorial in the journal Sleep stated that, according to the available data, the average number of hours of sleep in a 24-hour period has not changed significantly in recent decades among adults. Furthermore, the editorial suggests that there is a range of normal sleep time required by healthy adults, and many indicators used to suggest ...