Sleep Deprivation Statistics & Data to Know in 2026

Sleep deprivation is one of the most common public health problems in the United States, and one of the most underreported. About one in three American adults misses the recommended amount of uninterrupted sleep most nights. The fallout shows up in car crashes, workplace errors, heart disease, depression, and long-term brain health.

Below are 32 of the most important sleep deprivation statistics for 2026. Every number comes from a primary source, including federal agencies like the CDC, NIH, and NHTSA, peer-reviewed journals, and research institutions including RAND, Harvard, and The Lancet. Stats are grouped by topic, and every figure links back to its original source. Together, these lack of sleep statistics show how many Americans are sleep deprived and the toll it takes on health, safety, and the economy.

Sleep Deprivation in the United States

About 50 to 70 million Americans suffer from chronic sleep disorders, and roughly one in three adults regularly miss the amount of uninterrupted sleep needed to protect their health [1].

In 2020, 14.5% of U.S. adults had trouble falling asleep on most days, and 17.8% had trouble staying asleep [2].

Women are significantly more likely to report sleep difficulties than men. 17.1% of women report trouble falling asleep compared with 11.7% of men, and 20.7% of women report trouble staying asleep compared with 14.7% of men [2].

Sleep problems track closely with income. Among adults living below the federal poverty level, 21.9% report trouble falling asleep, compared with 12.6% of adults at 200% of the poverty level or higher [2].

By state, insufficient sleep ranged from 30% of adults in Vermont (the lowest) to 46% in Hawaii (the highest) in 2022, based on CDC Behavioral Risk Factor Surveillance System data [3].

At the county level, the gap is even wider. Boulder County, Colorado reported the lowest insufficient sleep rate at 24%, and Greene County, Alabama reported the highest at 48% [3].

Sleep deprivation is highest among Native Hawaiian or Pacific Islander adults (49%), adults aged 45 to 64 (39%), and men (37%) [3].

Sleep Deprivation and Mortality Risk

A 2025 meta-analysis of 79 cohort studies found that adults who sleep less than 7 hours per night face a 14% increase in all-cause mortality risk compared with those who sleep 7 to 8 hours [4].

The same meta-analysis found that long sleep duration of 9 or more hours per night was associated with a 34% higher mortality risk, confirming the U-shaped relationship between sleep duration and death from any cause [4].

A systematic meta-analysis of 18 cohort studies found that sleep deprivation is associated with a 9% greater risk of cardiovascular disease overall [5].

Sleep Deprivation and Cardiovascular Health

Short sleep duration is linked to a 45% increased risk of coronary heart disease, according to a widely cited systematic review of prospective studies [5].

Adults who get 6 or fewer hours of sleep per night are 24% more likely to have cardiovascular disease and have roughly twice the risk of developing hypertension [5].

After the spring shift to daylight saving time, hospital admissions for heart attacks jumped by as much as 24% on the following Monday in one large U.S. study. Researchers blame the abrupt loss of an hour of sleep [6].

The reverse pattern shows up in fall. Heart attack rates fell by about 21% on the Tuesday after clocks fall back and patients gain an hour of sleep [6].

Sleep Deprivation, Diabetes, and Weight

Adults who sleep 5 hours or less per night have a 17% higher risk of developing type 2 diabetes compared with adults who sleep 7 to 8 hours, based on a 16-year community cohort study [7].

The diabetes risk is significantly higher for adults with diagnosed sleep disorders. NHANES data show people with sleep disorders have roughly twice the odds of having diabetes compared with people without sleep problems [21].

Sleep-deprived adults choose foods that provide about 50% more calories and twice as much fat as they would when fully rested, according to a University of Chicago controlled study [8].

Sleep loss is linked to brain changes. After one night of sleep deprivation, beta-amyloid levels in the brain (a protein associated with Alzheimer's disease) rose by about 5% in affected brain regions compared with people who slept normally, in a National Institutes of Health study [9].

Sleep Deprivation and Mental Health

Adults who sleep 6 hours or fewer per night have about 2.5 times the odds of frequent mental distress compared with adults who get adequate sleep, even after adjusting for age, income, smoking, and education [10].

People with chronic insomnia are roughly 10 times more likely to have depression and 17 times more likely to have an anxiety disorder than the general population, based on clinical research summarized by Stanford Medicine [11].

Roughly 40% of adults diagnosed with insomnia also have a diagnosable psychiatric condition [11].

The Economic Cost of Sleep Deprivation

Insufficient sleep among the U.S. working population costs the economy up to $411 billion per year, equal to about 2.28% of GDP, according to RAND Europe's landmark cross-country analysis [12].

The same RAND analysis estimates the U.S. loses the equivalent of 1.23 million working days each year to insufficient sleep [12].

Insomnia alone costs the U.S. workforce about $63.2 billion annually in lost productivity, primarily through reduced on-the-job performance rather than missed days, according to a Harvard Medical School study published in the journal Sleep [13].

The average U.S. worker with insomnia loses 11.3 days (or about $2,280) in productivity each year compared with a well-rested peer [13].

Insomnia is linked to approximately 7% of all costly workplace accidents and errors and roughly 24% of the total dollar cost of those incidents [13].

Drowsy Driving Statistics

In 2024, drowsy drivers were involved in 644 fatal crashes in the United States, accounting for 1.6% of all traffic fatalities reported in federal data [14].

Police-reported figures substantially underestimate the problem. A 2024 AAA Foundation for Traffic Safety analysis applied NHTSA's Crash Investigation Sampling System model to federal fatality data and estimated that 17.6% of all fatal crashes from 2017 to 2021 involved a drowsy driver [15].

Sleep Deprivation Among Teens and Students

The CDC recommends at least 8 hours of sleep per night for high school students, yet in 2021 insufficient sleep among teens ranged from 71% of high schoolers in South Dakota to 84% in Pennsylvania [16].

Among U.S. high schoolers in 2021, 80% of female students, 84% of 12th graders, and 84% of Black students reported less than 8 hours of sleep on an average school night [16].

Military Service Members and Sleep

Roughly 64% of U.S. service members report sleeping less than 7 hours per night, according to Department of Defense Health Related Behavior Surveys [17].

Sleep Aids and Melatonin Use in America

Melatonin use among U.S. adults more than quintupled between 1999 and 2018, rising from 0.4% of survey respondents in the 1999 to 2000 NHANES cycle to 2.1% in the 2017 to 2018 cycle, according to a JAMA analysis of NHANES data [18].

Use of high-dose melatonin supplements (more than 5 milligrams per day) more than tripled between 2005 and 2018. The long-term safety of high doses remains uncertain [18].

The Global Burden of Sleep Apnea

An estimated 936 million adults aged 30 to 69 worldwide have mild to severe obstructive sleep apnea, and 425 million have moderate to severe cases, according to the first global prevalence study published in The Lancet Respiratory Medicine [19].

The same Lancet analysis found that prevalence exceeds 50% of adults in some countries, with the highest absolute numbers in China, the United States, Brazil, and India [19].

Sleep Deprivation and Vaccine Response

A meta-analysis published in Current Biology found that sleeping fewer than 6 hours per night in the days surrounding flu vaccination produces a significantly weaker antibody response, with the effect more pronounced in men than in women [20].

Why These Sleep Deprivation Statistics Matter

From the prevalence of insomnia and chronic sleep deprivation to drowsy driving deaths and the global burden of sleep apnea, these sleep deprivation facts paint a clear picture of a public health gap with consequences that touch nearly every major outcome. The 2026 sleep deprivation statistics above show why sleep belongs in the same conversation as diet and exercise.

Sources

1. [1] National Heart, Lung, and Blood Institute. "Sleep Health." U.S. Department of Health and Human Services, 26 Jul. 2023, https://www.nhlbi.nih.gov/health-topics/education-and-awareness/sleep-health.

2. [2] Adjaye-Gbewonyo, Dzifa, et al. "Sleep Difficulties in Adults: United States, 2020." NCHS Data Brief No. 436, Centers for Disease Control and Prevention, 22 Jun. 2022, https://www.cdc.gov/nchs/products/databriefs/db436.htm.

3. [3] Centers for Disease Control and Prevention. "Adults Sleep Facts and Stats." U.S. Department of Health and Human Services, 15 May 2024, https://www.cdc.gov/sleep/data-research/facts-stats/adults-sleep-facts-and-stats.html.

4. [4] Ungvari, Zoltan, et al. "Imbalanced Sleep Increases Mortality Risk by 14 to 34%: A Meta-Analysis." GeroScience, Springer Nature, 2025, https://link.springer.com/article/10.1007/s11357-025-01592-y.

5. [5] Zhang, Min, et al. "The Association Between Sleep Deprivation and the Risk of Cardiovascular Diseases: A Systematic Meta-Analysis." Biomedical Reports, National Library of Medicine, Oct. 2023, https://pmc.ncbi.nlm.nih.gov/articles/PMC10565718/.

6. [6] American College of Cardiology. "Daylight Saving Impacts the Timing of Heart Attacks." ACC News Story, 29 Mar. 2014, https://www.acc.org/about-acc/press-releases/2014/03/29/09/16/sandhu-daylight-saving.

7. [7] Kim, Chan-Hee, et al. "Sleep Duration and the Risk of Type 2 Diabetes: A Community-Based Cohort Study with a 16-Year Follow-Up." Endocrinology and Metabolism, National Library of Medicine, 2023, https://pubmed.ncbi.nlm.nih.gov/36740966/.

8. [8] University of Chicago Medical Center. "Sleep Loss Boosts Hunger and Unhealthy Food Choices." UChicago News, 4 Mar. 2016, https://news.uchicago.edu/story/sleep-loss-boosts-hunger-and-high-calorie-food-choices.

9. [9] National Institutes of Health. "Sleep Deprivation Increases Alzheimer's Protein." NIH Research Matters, 24 Apr. 2018, https://www.nih.gov/news-events/nih-research-matters/sleep-deprivation-increases-alzheimers-protein.

10. [10] Blackwelder, Aaron, et al. "Effect of Inadequate Sleep on Frequent Mental Distress." Preventing Chronic Disease, Centers for Disease Control and Prevention, 17 Jun. 2021, https://www.cdc.gov/pcd/issues/2021/20_0573.htm.

11. [11] Stanford Medicine. "How Sleep Affects Mental Health (and Vice Versa): What the Science Says." Stanford School of Medicine News, Aug. 2025, https://med.stanford.edu/news/insights/2025/08/sleep-mental-health-connection-what-science-says.html.

12. [12] RAND Corporation. "Lack of Sleep Costing U.S. Economy Up to $411 Billion a Year." RAND Press Release, 30 Nov. 2016, https://www.rand.org/news/press/2016/11/30.html.

13. [13] Harvard Medical School. "Insomnia Costing U.S. Workforce $63.2 Billion a Year, Researchers Estimate." Harvard Medical School News, 1 Sep. 2011, https://hms.harvard.edu/news/insomnia-costing-us-workforce-632-billion-year-researchers-estimate.

14. [14] National Highway Traffic Safety Administration. "Overview of Motor Vehicle Traffic Crashes in 2024." Traffic Safety Facts Research Note, U.S. Department of Transportation, 2025, https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813791.

15. [15] AAA Foundation for Traffic Safety. "Drowsy Driving in Fatal Crashes, United States, 2017 to 2021." AAA Foundation for Traffic Safety, Mar. 2024, https://newsroom.aaa.com/wp-content/uploads/2024/03/AAAFTS-Drowsy-Driving-2024.pdf.

16. [16] Centers for Disease Control and Prevention. "High School Students Sleep Facts and Stats." U.S. Department of Health and Human Services, 15 May 2024, https://www.cdc.gov/sleep/data-research/facts-stats/high-school-students-sleep-facts-and-stats.html.

17. [17] RAND Corporation. "Study on the Effects of Sleep Deprivation on Readiness of Members of the Armed Forces." Department of Defense Report, 26 Feb. 2021, https://health.mil/Reference-Center/Reports/2021/02/26/Study-on-Effects-of-Sleep-Deprivation-on-Readiness-of-Members-of-the-Armed-Forces-Final-Report.

18. [18] Li, Jingen, et al. "Trends in Use of Melatonin Supplements Among U.S. Adults, 1999 to 2018." JAMA, JAMA Network, 1 Feb. 2022, https://jamanetwork.com/journals/jama/fullarticle/2788539.

19. [19] Benjafield, Adam V., et al. "Estimation of the Global Prevalence and Burden of Obstructive Sleep Apnoea: A Literature-Based Analysis." The Lancet Respiratory Medicine, vol. 7, no. 8, Aug. 2019, https://www.thelancet.com/journals/lanres/article/PIIS2213-2600(19)30198-5/abstract.

20. [20] Spiegel, Karine, et al. "A Meta-Analysis of the Associations Between Insufficient Sleep Duration and Antibody Response to Vaccination." Current Biology, vol. 33, no. 5, 13 Mar. 2023, https://www.cell.com/current-biology/fulltext/S0960-9822(23)00156-2.

21. [21] Liu, Yong, et al. "The Association of Sleep Disorder, Obesity Status, and Diabetes Mellitus among US Adults—The NHANES 2009-2010 Survey Results." International Journal of Endocrinology, vol. 2013, 2013, https://pmc.ncbi.nlm.nih.gov/articles/PMC3730157/.