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2. 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 ...

3. The Truth About Whether 7 Hours of Sleep Is Enough ... - AOL

   www.aol.com/truth-whether-7-hours-sleep...

   "Optimal sleep is important because getting the right number of hours of sleep ensures good sleep architecture and healthy patterns for staying and falling asleep," says Dr. Alex Dimitriu, MD, a ...

4. 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%.

5. Sample size determination - Wikipedia

   en.wikipedia.org/wiki/Sample_size_determination

   The table shown on the right can be used in a two-sample t-test to estimate the sample sizes of an experimental group and a control group that are of equal size, that is, the total number of individuals in the trial is twice that of the number given, and the desired significance level is 0.05. [4] The parameters used are:

6. How to Know If 6 Hours of Sleep Is Enough - AOL

   www.aol.com/know-6-hours-sleep-enough-235900599.html

   According to Peter Polos, M.D., an associate professor of sleep medicine at Hackensack JFK Medical Center in New Jersey and a sleep expert for Sleep Number, it's not great. For most people, less ...

7. 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 ...

8. Apnea–hypopnea index - Wikipedia

   en.wikipedia.org/wiki/Apnea–hypopnea_index

   The AHI is calculated by dividing the number of apnea events by the number of hours of sleep. The AHI values for adults are categorized as: [1] [2] Normal: AHI<5; Mild sleep apnea: 5≤AHI<15; Moderate sleep apnea: 15≤AHI<30; Severe sleep apnea: AHI≥30; For children, because of their different physiology, an AHI in excess of 1 is considered ...

9. What is ‘Sleep Opportunity’? And How Do I Calculate It? - AOL

   www.aol.com/entertainment/sleep-opportunity...

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