Knowledge Tree
sleep efficiency
Also known as: habitual sleep efficiency
Facts (14)
Sources
Sleep Across the Lifespan: A Neurobehavioral Perspective link.springer.com Feb 5, 2025 4 facts
claimOlder adults are more easily aroused by light disturbances at night, which contributes to greater sleep fragmentation and reduced sleep efficiency.
claimBetter sleep efficiency at 10 months of age is associated with higher mental developmental index scores on the Bayley Scales for Infant and Toddler Development.
claimThe natural decline in estrogen during the menopausal transition is associated with declines in sleep quality, efficiency, and continuity.
measurementHealthy older adults experience an average reduction in Total Sleep Time (TST) of 8–12 minutes per decade, which reflects decreased sleep efficiency despite older adults spending more time in bed.
Psychosocial Pathways - CDC cdc.gov Sep 1, 2023 3 facts
claimSleep health comprises several measurable dimensions: sleep duration (total amount of sleep per 24-hour day), sleep continuity or efficiency (ease of falling asleep and returning to sleep), timing (placement of sleep within the 24-hour day), alertness/sleepiness (ability to maintain attentive wakefulness), and satisfaction/quality (subjective assessment of “good” or “poor” sleep).
claimSleep health is defined by several measurable dimensions: sleep duration (total sleep per 24 hours), sleep continuity or efficiency (ease of falling and returning to sleep), timing (placement of sleep within the 24-hour day), alertness/sleepiness (ability to maintain attentive wakefulness), and satisfaction/quality (subjective assessment of sleep).
claimSleep health is defined by the Centers for Disease Control and Prevention as comprising five measurable dimensions: sleep duration (total sleep per 24-hour day), sleep continuity or efficiency (ease of falling asleep and returning to sleep), timing (placement of sleep within the 24-hour day), alertness/sleepiness (ability to maintain attentive wakefulness), and satisfaction/quality (subjective assessment of sleep).
Investigating the impact of sleep quality on cognitive functions ... frontiersin.org 3 facts
measurementActigraphy data showed that university students in Tokyo had lower sleep efficiency (82.5 ± 7.0%) compared to university students in London (87.5 ± 8.0%) with a p-value < 0.001 and Cohen's d = 0.67.
claimRegression analyses indicate that Pittsburgh Sleep Quality Index (PSQI) scores significantly predict performance on cognitive measures (RAVLT, Stroop Test, RPM, and WCST) even after controlling for demographic variables (age, gender, socioeconomic status) and actigraphy-measured sleep duration and efficiency.
referenceThe Pittsburgh Sleep Quality Index (PSQI) is a validated instrument used to assess multiple aspects of sleep quality over the previous month, consisting of 19 items that generate seven component scores: subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, usage of sleeping medications, and daytime dysfunction.
Lunar effect - Wikipedia en.wikipedia.org 1 fact
claimA Swedish study of 492 women and 360 men found that men whose sleep was recorded during the waxing period of the lunar cycle exhibited lower sleep efficiency and increased time awake after sleep onset compared to men whose sleep was measured during the waning period, while women's sleep remained largely unaffected.
Short- and long-term health consequences of sleep disruption dovepress.com May 19, 2017 1 fact
claimComparing the historical four-stage sleep classification system with the American Academy of Sleep Medicine's three-stage system shows only minor differences in total sleep time, sleep efficiency, and REM sleep, but the choice of system impacts the measurement of wake after sleep onset and the distribution of NREM sleep stages.
Sleep Deprivation, Sleep Disorders, and Chronic Disease - CDC cdc.gov Aug 31, 2023 1 fact
claimSleep health is defined as a multifaceted concept of sleep–wakefulness patterns tailored to personal, societal, and environmental needs that promotes overall well-being, encompassing not just the amount of sleep but also the timing, regularity, satisfaction, and efficiency of sleep.
Impact of sleep duration on executive function and brain structure nature.com Mar 3, 2022 1 fact
claimA study examining hippocampal volume, which is a marker for memory function and Alzheimer's pathology, found no association with sleep duration, but did find that poor sleep quality and efficiency are associated with a greater rate of hippocampal volume loss.