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  2. Pittsburgh Sleep Quality Index - Wikipedia

    en.wikipedia.org/wiki/Pittsburgh_Sleep_Quality_Index

    Consisting of 19 items, the PSQI measures several different aspects of sleep, offering seven component scores and one composite score. The component scores consist of subjective sleep quality, sleep latency (i.e., how long it takes to fall asleep), sleep duration, habitual sleep efficiency (i.e., the percentage of time in bed that one is asleep), sleep disturbances, use of sleeping medication ...

  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. Epworth Sleepiness Scale - Wikipedia

    en.wikipedia.org/wiki/Epworth_Sleepiness_Scale

    For instance, scores of 11–15 are shown to indicate the possibility of mild to moderate sleep apnea, where a score of 16 and above indicates the possibility of severe sleep apnea or narcolepsy. [3] Certain questions in the scale were shown to be better predictors of specific sleep disorders, though further tests may be required to provide an ...

  5. What Is Sleep Efficiency—And How Can You Improve It? - AOL

    www.aol.com/sleep-efficiency-improve-134000310.html

    Sleep efficiency is the ratio of the time you spend asleep relative to the time you dedicate to sleep, Dr. Chitkara explains. To calculate it, divide the total minutes you’re asleep by the total ...

  6. Sleep problems in 30s and 40s may add extra years to your ...

    www.aol.com/sleep-problems-30s-40s-may-220500172...

    Sleep quality issues in early middle-age are associated with accelerated brain aging and cognitive problems later in life, according to new research. ... and received a sleep qualityscore ...

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

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

    It’s a commitment you make every time your alarm goes off: “Don’t worry, body. Tonight, I promise to get eight hours of sleep.” But according to Matthew Walker, director of UC Berkeley’s ...

  8. Respiratory disturbance index - Wikipedia

    en.wikipedia.org/wiki/Respiratory_disturbance_index

    The respiratory disturbance index (RDI)—or respiratory distress Index—is a formula used in reporting polysomnography (sleep study) findings. Like the apnea-hypopnea index (AHI), it reports on respiratory distress events during sleep, but unlike the AHI, it also includes respiratory-effort related arousals (RERAs). [1]

  9. Multiple Sleep Latency Test - Wikipedia

    en.wikipedia.org/wiki/Multiple_Sleep_Latency_Test

    The Multiple Sleep Latency Test (MSLT) is a sleep disorder diagnostic tool. It is used to measure the time elapsed from the start of a daytime nap period to the first signs of sleep, called sleep latency. The test is based on the idea that the sleepier people are, the faster they will fall asleep.