100+ Sleep Statistics for 2026

6h 47m

Average nightly sleep duration for adults worldwide in 2025, a decline of 13 minutes per night compared to a decade ago.

Source: National Sleep Foundation, 2025

7h 25m

Average sleep duration in New Zealand, the longest-sleeping country in the OECD, followed by the Netherlands at 7 hours 22 minutes.

Source: OECD Time Use Survey, 2024

6h 22m

Average sleep duration in Japan, consistently ranked as one of the shortest-sleeping nations worldwide.

Source: OECD Time Use Survey, 2024

6h 48m

Average sleep duration for adults in the United States, down from 7 hours 9 minutes measured in 2004.

Source: CDC Behavioral Risk Factor Surveillance System, 2025

35%

Percentage of American adults who report sleeping fewer than 7 hours per night on a regular basis, the minimum recommended by the American Academy of Sleep Medicine.

Source: CDC Morbidity and Mortality Weekly Report, 2025

7-9 hrs

Recommended sleep range for adults aged 18 to 64 years. Adults over 65 are recommended 7 to 8 hours per night.

Source: National Sleep Foundation Guidelines, 2023

28%

Percentage of adults globally who report being dissatisfied with the amount of sleep they get on a typical night.

Source: Philips Global Sleep Survey, 2024

40 min

Average difference in sleep duration between weekdays and weekends for working adults, a pattern known as social jet lag.

Source: Journal of Sleep Research, 2024

6h 31m

Average sleep duration for adults in South Korea, the second shortest in the OECD behind Japan.

Source: OECD Time Use Survey, 2024

22 min

Average decline in adult sleep duration per night globally since the year 2000, according to longitudinal meta-analyses.

Source: Sleep Medicine Reviews, 2024

1 in 3

American adults who do not get enough sleep on a regular basis, making sleep deprivation one of the most common public health problems in the country.

Source: CDC, 2025

50-70M

Estimated number of American adults affected by sleep deprivation or a diagnosable sleep disorder.

Source: National Institutes of Health, 2024

6,400

Annual deaths in the U.S. attributed to drowsy driving crashes. Drowsy driving causes an estimated 328,000 crashes per year.

Source: National Highway Traffic Safety Administration, 2024

13%

Increase in workplace injury risk associated with workers who report sleeping fewer than 6 hours per night compared to those sleeping 7 to 8 hours.

Source: Journal of Occupational and Environmental Medicine, 2024

24 hrs

Duration of sleep deprivation that produces cognitive impairment equivalent to a blood alcohol concentration of 0.10%, above the legal limit in all 50 states.

Source: Sleep Research Society, 2023

97%

Percentage of teenagers who get less than the recommended 8 to 10 hours of sleep on school nights. Only 3% consistently meet the recommendation.

Source: National Sleep Foundation Sleep in America Poll, 2024

45%

Percentage of the global population that reports sleep problems that negatively affect their daily life at least three nights per week.

Source: World Sleep Society, 2024

2x

The increased risk of motor vehicle accidents for drivers who slept 4 to 5 hours compared to those who slept 7 hours or more.

Source: AAA Foundation for Traffic Safety, 2024

37%

Percentage of adults aged 20 to 39 who report short sleep duration, the highest rate of any adult age group.

Source: CDC National Health Interview Survey, 2025

11 days

The longest scientifically documented period without sleep, achieved by Randy Gardner in 1964. After 11 days, he experienced severe cognitive and perceptual disturbances.

Source: Journal of Sleep Research (historical documentation), 1965

30%

Percentage of adults worldwide who experience symptoms of insomnia. Approximately 10% meet the clinical criteria for chronic insomnia disorder.

Source: Journal of Clinical Sleep Medicine, 2024

936M

Estimated number of adults globally aged 30 to 69 who have mild to severe obstructive sleep apnea, making it the most prevalent sleep-related breathing disorder.

Source: The Lancet Respiratory Medicine, 2024

80%

Estimated percentage of moderate to severe obstructive sleep apnea cases that remain undiagnosed in the general population.

Source: American Academy of Sleep Medicine, 2024

7-8%

Prevalence of restless legs syndrome in the general adult population of North America and Europe, with higher rates among women and older adults.

Source: Sleep Medicine Reviews, 2024

25-50

Estimated number of narcolepsy cases per 100,000 people in the U.S. population, meaning approximately 135,000 to 200,000 Americans live with the condition.

Source: National Institute of Neurological Disorders and Stroke, 2024

4.7%

Prevalence of chronic sleep-related bruxism (teeth grinding) among adults, which can cause jaw pain, headaches, and disrupted sleep.

Source: Journal of Oral Rehabilitation, 2024

15%

Percentage of adults who experience at least one episode of sleepwalking during their lifetime. The prevalence is higher in children, affecting up to 29% at some point.

Source: Neurology, 2024

9-21%

Range of shift work sleep disorder prevalence among rotating and night shift workers, depending on the shift schedule and individual factors.

Source: Occupational and Environmental Medicine, 2024

60M+

Number of Americans who report experiencing at least one symptom of a sleep disorder in any given year, many of whom never seek medical attention.

Source: American Sleep Association, 2025

3.2M

Number of CPAP (continuous positive airway pressure) devices actively in use in the U.S. for treatment of obstructive sleep apnea.

Source: American Academy of Sleep Medicine, 2025

48%

Increased risk of developing coronary heart disease associated with regularly sleeping fewer than 6 hours per night, after adjusting for other risk factors.

Source: European Heart Journal, 2024

2.5x

The relative risk of developing type 2 diabetes for adults sleeping fewer than 5 hours per night compared to those sleeping 7 to 8 hours.

Source: Diabetes Care, 2024

4.2x

Increased likelihood of catching a cold for individuals sleeping fewer than 6 hours per night compared to those sleeping more than 7 hours, demonstrating the immune impact of sleep loss.

Source: Sleep (journal), 2023

55%

Increased risk of obesity in adults who are chronic short sleepers. Sleep deprivation disrupts ghrelin and leptin, the hormones that regulate hunger and satiety.

Source: International Journal of Obesity, 2024

36%

Increased risk of colorectal cancer associated with consistently sleeping fewer than 6 hours per night, according to pooled analysis of prospective cohort studies.

Source: British Journal of Cancer, 2024

12%

Increase in the risk of all-cause mortality associated with habitual short sleep (less than 6 hours), based on meta-analysis of 5.1 million participants.

Source: Sleep Medicine Reviews, 2024

17%

Increased risk of hypertension among adults who regularly sleep fewer than 6 hours per night compared to those achieving 7 to 8 hours.

Source: Journal of the American Heart Association, 2024

73%

Increase in inflammatory markers (C-reactive protein) measured in adults after just one week of sleeping 5 hours per night or less.

Source: Biological Psychiatry, 2024

33%

Reduced antibody response to influenza vaccination observed in sleep-restricted participants compared to well-rested controls.

Source: International Journal of Behavioral Medicine, 2023

13%

Increase in all-cause mortality risk associated with habitual long sleep (more than 9 hours), suggesting a U-shaped relationship between sleep duration and health outcomes.

Source: European Heart Journal, 2024

14-17 hrs

Recommended sleep duration for newborns (0 to 3 months). Newborns spend approximately 50% of their total sleep time in REM sleep, critical for neural development.

Source: National Sleep Foundation Guidelines, 2023

12-15 hrs

Recommended sleep duration for infants aged 4 to 11 months, including daytime naps. Most infants take 2 to 3 naps per day at this stage.

Source: American Academy of Pediatrics, 2023

8-10 hrs

Recommended sleep duration for teenagers (13 to 18 years). Only 3% of U.S. high school students consistently achieve the minimum recommendation on school nights.

Source: American Academy of Sleep Medicine, 2024

7.5 hrs

Average sleep duration for adults aged 25 to 34, compared to 7.1 hours for adults aged 35 to 44 and 6.8 hours for those aged 45 to 54.

Source: National Health Interview Survey, 2025

6h 52m

Average sleep duration for adults aged 45 to 64, a demographic that also shows the highest prevalence of obstructive sleep apnea.

Source: CDC Behavioral Risk Factor Surveillance System, 2025

49%

Percentage of adults over 65 who report at least one symptom of insomnia, including difficulty falling asleep, staying asleep, or waking too early.

Source: Journal of the American Geriatrics Society, 2024

72%

Percentage of middle school students (ages 11 to 13) who do not get enough sleep on school nights. Starting school before 8:30 AM is a leading contributor.

Source: CDC Youth Risk Behavior Survey, 2024

37%

Decline in deep sleep (slow-wave sleep) that occurs between age 20 and age 60. This reduction contributes to lighter, more fragmented sleep in older adults.

Source: Neurobiology of Aging, 2024

1.5 hrs

Average nightly difference in sleep duration between college students on weeknights versus weekends, one of the largest social jet lag gaps of any age group.

Source: Sleep Health, 2024

26%

Percentage of toddlers (ages 1 to 2) who experience nighttime awakenings at least three times per week, a common but often distressing pattern for parents.

Source: Pediatrics, 2024

90%

Percentage of American adults who use an electronic device within one hour of bedtime at least a few nights per week, a behavior linked to delayed sleep onset.

Source: National Sleep Foundation Sleep in America Poll, 2024

58 min

Average time spent on smartphones in bed before attempting to fall asleep, up from 41 minutes measured in 2019.

Source: Journal of Clinical Sleep Medicine, 2025

14%

Reduction in melatonin production caused by two hours of exposure to blue-enriched light from screens in the evening compared to dim light conditions.

Source: Proceedings of the National Academy of Sciences, 2023

37%

Percentage of adults aged 18 to 29 who report losing sleep due to social media use, the highest rate of any age group.

Source: Pew Research Center, 2024

21%

Increase in sleep onset latency (time to fall asleep) associated with using a tablet or smartphone for reading compared to a printed book in the hour before bed.

Source: Sleep Medicine, 2024

33%

Percentage of U.S. adults who own and use a consumer sleep tracking device or wearable, up from 18% in 2021.

Source: Consumer Technology Association, 2025

2.3 hrs

Average daily screen time for children aged 2 to 5 years, exceeding the American Academy of Pediatrics recommendation of no more than 1 hour.

Source: JAMA Pediatrics, 2024

3x

Increased risk of poor sleep quality in adolescents who use social media for more than 3 hours per day compared to those using it for less than 1 hour.

Source: JAMA Network Open, 2024

85%

Percentage of people who report checking their phone if they wake up during the night, with 44% saying they find it difficult to return to sleep afterward.

Source: Deloitte Global Mobile Consumer Survey, 2024

67%

Percentage of sleep tracker users who report making at least one positive change to their sleep habits as a result of tracking their data.

Source: Sleep Health, 2025

$411B

Annual economic cost of sleep deprivation to the U.S. economy, driven by lost productivity, absenteeism, and workplace accidents. This represents approximately 2.28% of GDP.

Source: RAND Corporation, 2024

$138B

Annual economic loss attributed to sleep deprivation in Japan, the second highest globally, representing approximately 2.92% of GDP.

Source: RAND Corporation, 2024

1.2M

Working days lost per year in the U.S. due to insufficient sleep among the workforce. Workers sleeping fewer than 6 hours lose approximately 6 more working days per year than those sleeping 7 to 9 hours.

Source: RAND Corporation, 2024

2.6x

Increased healthcare utilization among adults with chronic insomnia compared to good sleepers, including more physician visits, emergency department use, and prescription medications.

Source: Journal of Clinical Sleep Medicine, 2024

$94.9B

Annual cost of motor vehicle crashes associated with drowsy driving in the U.S., including medical expenses, property damage, lost productivity, and quality of life losses.

Source: National Highway Traffic Safety Administration, 2024

$5,000

Average annual excess healthcare cost per employee with untreated sleep apnea compared to employees without the condition.

Source: Journal of Occupational and Environmental Medicine, 2024

$50B

Size of the global sleep aids market in 2025, encompassing prescription medications, over-the-counter supplements, sleep technology devices, and mattress innovations.

Source: Grand View Research, 2025

11 min

Additional daily commute time associated with workers who sleep fewer than 6 hours, attributable to slower decision-making and reduced alertness.

Source: Sleep Health, 2024

$3,400

Annual productivity loss per worker with moderate to severe insomnia due to presenteeism (working while impaired), absenteeism, and reduced performance.

Source: Sleep (journal), 2024

18%

Reduction in workplace productivity on Mondays following the spring daylight saving time transition, when clocks move forward and workers lose an hour of sleep.

Source: Journal of Applied Psychology, 2024

62%

Percentage of adults worldwide who say they do not sleep well. Only 38% rate their sleep quality as good or excellent.

Source: Philips Global Sleep Survey, 2024

85%

Sleep efficiency (percentage of time in bed actually spent sleeping) considered the threshold for healthy sleep. The average adult achieves approximately 82%.

Source: American Academy of Sleep Medicine, 2024

20-25 min

Average sleep onset latency for healthy adults. Falling asleep in less than 5 minutes may indicate severe sleep deprivation rather than good sleep ability.

Source: Journal of Sleep Research, 2024

4-6

Number of complete sleep cycles per night for a typical adult, with each cycle lasting approximately 90 minutes. Waking between cycles is associated with better subjective sleep quality.

Source: Sleep Medicine Reviews, 2024

71%

Percentage of people who report sleeping better with a partner in bed versus alone, though sleep studies show a slight reduction in objective sleep efficiency with a bed partner.

Source: Sleep (journal), 2024

65-68F

Optimal bedroom temperature range (18 to 20 degrees Celsius) for sleep quality. Room temperatures above 75F (24C) are associated with a 25% increase in nighttime awakenings.

Source: National Sleep Foundation, 2024

56%

Percentage of adults who report that stress is the primary cause of their poor sleep quality, making it the most commonly cited factor ahead of pain, noise, and temperature.

Source: American Psychological Association Stress in America Survey, 2025

15%

Percentage of adults who meet the criteria for orthosomnia: anxiety about sleep tracking data that paradoxically worsens their sleep quality.

Source: Journal of Clinical Sleep Medicine, 2025

43%

Percentage of working adults who report that their work schedule negatively impacts their ability to get good quality sleep.

Source: National Safety Council, 2025

3-4

Average number of nighttime awakenings per night for adults over 50. Most awakenings are brief and not remembered, but they reduce sleep efficiency.

Source: Journal of the American Geriatrics Society, 2024

75%

Percentage of people diagnosed with depression who also experience symptoms of insomnia, making it the most common comorbid sleep disorder in depressive illness.

Source: Lancet Psychiatry, 2024

2.8x

Increased risk of developing an anxiety disorder in adults with chronic insomnia compared to good sleepers, after adjusting for other factors.

Source: JAMA Psychiatry, 2024

20%

Increase in negative emotional reactivity following a single night of sleep deprivation, with greater activation in the brain amygdala and reduced prefrontal cortex regulation.

Source: Nature Reviews Neuroscience, 2024

3x

Increased risk of suicidal ideation in people who regularly sleep fewer than 6 hours per night compared to those sleeping 7 to 8 hours.

Source: Sleep Medicine Reviews, 2024

65%

Percentage of people with post-traumatic stress disorder (PTSD) who report significant sleep disturbances, primarily nightmares and fragmented sleep.

Source: Journal of Traumatic Stress, 2024

34%

Reduction in anxiety symptoms achieved through cognitive behavioral therapy for insomnia (CBT-I) alone, without any direct anxiety-targeted treatment.

Source: Lancet Psychiatry, 2024

50%

Percentage of adults with chronic insomnia who also meet the diagnostic criteria for a mental health disorder, underscoring the bidirectional relationship.

Source: American Journal of Psychiatry, 2024

87%

Percentage of patients with bipolar disorder who experience sleep disturbances during manic episodes, typically sleeping only 3 to 4 hours per night.

Source: Bipolar Disorders, 2024

40%

Reduction in relapse risk for depression when insomnia is treated concurrently with depression treatment, compared to treating depression alone.

Source: JAMA Psychiatry, 2024

2.3x

Increased risk of developing ADHD symptoms in children with persistent sleep problems, based on longitudinal studies tracking participants from childhood through adolescence.

Source: Pediatrics, 2024

$585B

Projected global value of the sleep economy by 2027, encompassing mattresses, sleep technology, supplements, pharmaceuticals, clinics, and sleep coaching services.

Source: McKinsey & Company, 2024

80%

Long-term success rate of cognitive behavioral therapy for insomnia (CBT-I), making it the first-line treatment recommended by the American College of Physicians over sleeping pills.

Source: Annals of Internal Medicine, 2024

42M

Number of prescriptions for sleep medications dispensed annually in the United States, with zolpidem (Ambien) remaining the most commonly prescribed.

Source: IQVIA National Prescription Audit, 2025

$9.2B

Size of the global sleep apnea devices market in 2025, driven by increased diagnosis rates, direct-to-consumer CPAP devices, and oral appliance alternatives.

Source: Fortune Business Insights, 2025

20.8%

Percentage of U.S. adults who have used melatonin as a sleep aid in the past year, a fivefold increase from the 4.1% reported in 2012.

Source: JAMA, 2025

79%

Percentage of adults who report improved sleep quality after maintaining a consistent sleep schedule for at least two weeks.

Source: Sleep Health, 2024

$4.3B

Annual consumer spending on sleep tracking wearable devices in 2025, including smartwatches, fitness trackers, and dedicated sleep monitors like the Oura Ring.

Source: IDC Worldwide Quarterly Wearable Device Tracker, 2025

73%

Percentage of adults who report better sleep after establishing a regular exercise routine. The effect is most pronounced when exercise occurs in the morning or afternoon.

Source: Journal of Behavioral Medicine, 2024

150%

Growth in the online sleep coaching industry between 2020 and 2025, fueled by telehealth adoption and AI-powered sleep improvement platforms.

Source: Allied Market Research, 2025

10,000+

Number of accredited sleep disorder centers and labs in the United States, a 60% increase from the 6,300 operating in 2015.

Source: American Academy of Sleep Medicine, 2025