Interactive data center
Current headline statistics
30.5%
Adults whose usual sleep duration in a 24-hour period averaged fewer than 7 hours.
Self-reported usual duration, not measured sleep. Duration alone does not describe sleep quality or continuity.
15.4%
Adults reporting trouble falling asleep most days or every day in the past 30 days.
Self-reported. Not equivalent to a clinical diagnosis of insomnia disorder.
18.1%
Adults reporting trouble staying asleep most days or every day in the past 30 days.
Self-reported. Sleep-maintenance difficulty has many possible causes.
54.8%
Adults reporting they usually woke up feeling well-rested.
Subjective restoration does not always align with measured sleep architecture.
12.9%
Adults reporting use of any medication or supplement to help fall or stay asleep most days or every day.
Includes prescription and non-prescription products. Use does not indicate effectiveness.
35.2%
Adults reporting short sleep duration (fewer than 7 hours).
State estimates come from a different survey than the 2024 national figures and are not directly comparable.
Women reported more difficulty falling and staying asleep than men. Adults ages 50–64 reported particularly high levels of difficulty staying asleep. Black adults reported higher rates of short sleep than several other groups in the 2024 survey. These are population patterns shaped by many social and economic factors, race, sex and age are not presented here as biological diagnoses.
Insufficient sleep is associated with higher risk of obesity, type 2 diabetes, hypertension, heart disease, stroke, anxiety and depression, evidence that poor sleep is one visible symptom of broader biological incoherence. Association does not prove that poor sleep is the single direct cause of those outcomes, the relationships are frequently bidirectional and shaped by other factors.
Eight interactive charts
Share of adults sleeping fewer than seven hours in a 24-hour period, an early signal of biological incoherence.
30.5%
Fewer than 7 hours
69.5%
7 hours or more
Source: CDC NHIS, 2024
NHIS and BRFSS use different survey designs, so 2024 national figures and 2022 state figures are not directly comparable.
Duration is only one dimension. Difficulty initiating and difficulty maintaining sleep point to different sources of biological noise, and call for different protocols.
Trouble falling asleep
15.4%
of U.S. adults, 2024. Generic advice rarely distinguishes between these patterns. Sleep Week measures which one you actually have, and which recovery system moves it.
Source: CDC NHIS, 2024
Self-reported measures for the past 30 days. These are not clinical diagnoses of insomnia disorder.
Difficulty falling asleep, staying asleep and short sleep duration across adult age groups.
Adults ages 50–64 reported particularly high levels of difficulty staying asleep.
Source: CDC NHIS, 2024
Age patterns describe populations, not individuals. Age is not a diagnosis.
Reported difficulty by sex, switchable across three measures.
Women reported more difficulty falling and staying asleep than men. Black adults reported higher rates of short sleep than several other groups in the 2024 survey (39.9% versus 28.4% among White adults).
Source: CDC NHIS, 2024
Group differences are population patterns shaped by many factors. Sex is not presented here as a biological diagnosis.
Share of adults reporting insufficient sleep by state. Select a state for its value and source year.
California
35.2%
of adults reported insufficient sleep (2022). Published state estimates ranged from roughly 30% in Vermont to 46% in Hawaii, with California at 35.2%.
Source: CDC BRFSS, 2022
State estimates come from a different survey than the 2024 national figures. States without a published tile here are omitted from this schematic, not from the survey.
One common self-reinforcing pattern of biological noise. Select any node to see how it feeds the next.
Biological noise
Cognitive and physiological arousal rises through the evening, delaying the body's ability to enter recovery.
Source: Sleep Week illustrative model, 2026
The sequence is illustrative, not a universal diagnostic model. Real cases often begin at a different node, or involve breathing, circadian timing or medication instead.
The common attempts, and what each one can and cannot tell you about your underlying coherence.
12.9%
of U.S. adults used a sleep aid most days or every day (CDC NHIS, 2024).
Source: CDC NHIS, 2024 (sleep-aid use); Sleep Week clinical summary, 2026
Nearly 13% of adults reported using some type of sleep aid most days or every day in 2024. Use does not indicate effectiveness.
Nine interacting contributors to biological noise. Select any node to see how Sleep Week measures or addresses it.
Physiology
Heart rate, HRV, movement and temperature captured across three nights.
Insufficient sleep is associated with higher risk of obesity, type 2 diabetes, hypertension, heart disease, stroke, anxiety and depression, evidence that poor sleep is one visible symptom of broader biological incoherence. Association does not prove that poor sleep is the single direct cause of those outcomes, the relationships are frequently bidirectional and shaped by other factors.
Source: Sleep Week clinical model, 2026
Isolated changes rarely reveal which factor matters most for an individual. This is why measurement precedes any protocol.
Every chart supports mouse, keyboard and touch, offers an accessible data table and CSV download, shows its source and year, animates once on entry and respects reduced-motion preferences.
Why this matters here