concept

poor sleep quality

Also known as: poor sleep quality, poor sleep, poor-quality sleep

Facts (49)

Sources

Why Sleep Matters: Consequences of Sleep Deficiency sleep.hms.harvard.edu Harvard Medical School 13 facts

claimScientific research indicates that sleep loss and poor-quality sleep lead to increased workplace errors, decreased productivity, and accidents that cost lives and resources.

claimPoor sleep is associated with lower life expectancy.

claimPoor sleep can lead to food cravings, a preference for high-energy foods like sweets, and reduced physical activity due to fatigue.

claimSleep loss and poor-quality sleep can lead to an increase in workplace errors, decreased productivity, and accidents that cost lives and resources.

claimPoor sleep leads to an increase in the production of cortisol, which is known as the stress hormone.

claimPoor sleep may increase the likelihood of consuming foods like sweets to satisfy cravings for a quick energy boost.

claimPoor sleep is associated with lower life expectancy due to the adverse health effects of insufficient sleep.

perspectiveThe Harvard Sleep Health Education program asserts that the cost of poor sleep is profound and carries significant consequences for long-term health.

claimPoor sleep may cause food cravings even after consuming an adequate number of calories.

claimPoor sleep is associated with increased insulin secretion following a meal.

claimPoor sleep is associated with increased insulin secretion following a meal, which promotes fat storage and is a risk factor for diabetes.

claimAlcohol use is more prevalent among people who sleep poorly because alcohol acts as a mild sedative used as a sleep aid, and because alcohol's sedative quality is temporary, leading to arousal and awakenings later in the night as the body processes it.

claimAlcohol use is more prevalent among people who sleep poorly because alcohol is commonly used as a mild sedative to treat sleep problems such as insomnia.

Extent and Health Consequences of Chronic Sleep Loss and ... - NCBI ncbi.nlm.nih.gov Colten HR, Altevogt BM · National Academies Press 8 facts

measurementAmong the general adult population affected by chronic pain, 50 percent complain of poor sleep and 44 percent complain of insomnia.

claimSymptoms of pain-related sleep issues include daytime fatigue, sleepiness, poor sleep quality, delayed sleep onset, and decreased cognitive and motor performance.

measurementAmong individuals with chronic pain, 50 percent complain of poor sleep and 44 percent complain of insomnia.

claimPain causes sleep fragmentation and changes in an individual's sleep architecture, with symptoms including daytime fatigue, sleepiness, poor sleep quality, delayed sleep onset, and decreased cognitive and motor performance.

claimGupta et al. (2002) investigated the association between obesity and poor sleep quality in adolescents.

measurement50 percent of the adult population with chronic pain complain of poor sleep.

claimGupta NK, Mueller WH, Chan W, and Meininger JC investigated the association between obesity and poor sleep quality in adolescents.

claimGupta NK, Mueller WH, Chan W, and Meininger JC (2002) investigated the association between obesity and poor sleep quality in adolescents in the 'American Journal of Human Biology'.

Impact of sleep duration on executive function and brain structure nature.com Nature Mar 3, 2022 6 facts

referenceBlackwell, T. et al. reported that poor sleep is associated with impaired cognitive function in older women in the Study of Osteoporotic Fractures, published in the Journal of Gerontology Series A in 2006.

claimA study on brain structural integrity and sleep duration found a widespread relationship between the two, consistent with longitudinal data associating poor sleep quality with an increased rate of atrophy in frontal, parietal, and temporal brain regions.

claimPoor sleep quality is associated with impaired cognitive performance in older adults, as reported in a 2013 study in the Journal of Sleep Research.

referenceSexton, C. E., Storsve, A. B., Walhovd, K. B., Johansen-Berg, H., and Fjell, A. M. found that poor sleep quality is associated with increased cortical atrophy in community-dwelling adults in a 2014 study published in Neurology.

claimLow cerebellar volume has been associated with poor sleep quality in adolescents and with abnormal functional imaging in sleep disruption conditions such as narcolepsy and obstructive sleep apnoea.

claimMiyata et al. found that poor sleep quality impairs cognitive performance in older adults.

Sleep Across the Lifespan: A Neurobehavioral Perspective link.springer.com Springer Feb 5, 2025 5 facts

claimLack of access to affordable, nutritious food and inadequate recreational spaces for exercise in disadvantaged neighborhoods contribute to poor sleep.

claimSedentary lifestyles are associated with lower quality of sleep and increased sensitivity to the negative outcomes of poor sleep, such as increased depressive symptoms.

claimPoor sleep quality and insufficient sleep duration are directly associated with higher levels of presenteeism and increased health-related costs.

claimShift work and irregular work hours contribute to poor sleep and increased health risks.

claimIn older adults, there are associations between loneliness and poor sleep.

Investigating the impact of sleep quality on cognitive functions ... frontiersin.org Frontiers 5 facts

claimPoor sleep quality impairs attention, memory, executive functions, and overall cognitive performance, as documented by Leong and Chee (2023).

claimLondon University students who frequently used smartphones and tablets before bed reported poorer sleep quality and reduced cognitive abilities, according to Li et al. (2024).

claimThe negative impact of poor sleep on memory was found to be more pronounced in Tokyo compared to London, indicating a moderating role of the city in the relationship between sleep and cognition.

claimJapanese university students with poor sleep quality performed significantly worse on cognitive tests measuring attention, memory, and executive functions, according to a 2023 study.

claimStrained cognitive resources resulting from poor sleep quality can hinder attention, executive functions, and information processing efficiency, which ultimately diminishes academic performance.

How Lack of Sleep Impacts Cognitive Performance and Focus sleepfoundation.org Sleep Foundation Jul 29, 2025 2 facts

claimPoor sleep can harm intellectual performance, academic achievement, creative pursuits, productivity at work, motor skills, rhythm, and speech.

claimTeens are at a heightened risk for detrimental effects of poor sleep on thinking, decision-making, and academic performance due to ongoing brain development.

How Lack of Sleep Impacts Cognitive Performance and Focus brain.health Brain.Health Mar 13, 2023 2 facts

claimPoor sleep, defined as short sleep duration or fragmented sleep, hinders the ability to progress through sleep cycles normally, making it difficult to think clearly and process information.

claimPoor sleep is linked to longer-term cognitive decline, including the development of dementia and Alzheimer’s disease.

Sleep duration, chronotype, health and lifestyle factors ... bmjpublichealth.bmj.com BMJ Public Health 2 facts

claimA positive feedback relationship exists between sleep and Alzheimer’s disease, where poor sleep quality and duration induce amyloid-β peptide accumulation, which in turn causes poor sleep quality and sleep deprivation.

claimPoor sleep quality is correlated with lower cognitive functioning.

How Sleep Deprivation Impacts Mental Health columbiapsychiatry.org Columbia University Department of Psychiatry Mar 16, 2022 2 facts

claimStudies on sleep deprivation show that otherwise healthy individuals can experience increased anxiety and distress levels following poor sleep.

claimInsufficient or poor-quality sleep increases negative emotional responses to stressors and decreases positive emotions.

About Sleep - CDC cdc.gov CDC May 15, 2024 1 fact

claimSigns of poor sleep quality include trouble falling asleep, repeatedly waking up during the night, and feeling sleepy or tired even after getting enough sleep.

Associations Between Sleep Duration and Cognitive Function ... humanfactors.jmir.org JMIR Human Factors 1 fact

claimWang et al. (2022) found that poor sleep quality is negatively associated with low cognitive performance in the general population, independent of self-reported sleep-disordered breathing.

National Sleep Foundation Guidelines: How Much Sleep Do You ... drkumardiscovery.com Dr. Kumar Discovery Oct 22, 2025 1 fact

claimPoor sleep quality may require a longer sleep duration to achieve the same restorative benefits as high-quality sleep.

4 phases of the menstrual cycle: How to feel your best around your ... healthy.kaiserpermanente.org Dr. Joyce Gottesfeld · Kaiser Permanente Jul 27, 2025 1 fact

claimCommon physical symptoms during the menstrual phase include bleeding, cramps in the lower belly or back, poor sleep, lack of energy, headaches, bloating, tender breasts, and muscle aches.