Sleep Quality Score Tool — Free Sleep Age, Debt & Energy Test
Free sleep self-assessment
Sleep Quality Score
Twelve questions about a typical month of your sleep. You get a score out of 100, the seven component scores behind it, and the measured numbers the score was built from.
What this tool measures
Most people judge their sleep by one number, the hours they spent in bed. That number leaves out the part that decides how you feel at 3pm: how much of the night you were actually asleep, how long it took to get there, how often the night broke apart, and whether any of it happens at the same time each day.
This tool takes twelve answers and turns them into seven component scores: duration, sleep efficiency, time to fall asleep, how refreshed you wake, timing consistency, night-time disturbance, and daytime load. Each one is weighted, and the weights are printed further down this page so you can see exactly where your score came from.
The seven-component shape follows the Pittsburgh Sleep Quality Index (Buysse and colleagues, Psychiatry Research, 1989), the self-report questionnaire most sleep research uses. This is not the PSQI. It asks different questions, scores 0 to 100 instead of the PSQI's 0 to 21, and has never been validated against a clinical standard. Treat the output as a structured look at your own habits, and nothing more.
Your sleep timing
Your best estimate for a typical night over the past month.
Inside the night
Count only the times you remember being awake, including trips to the bathroom.
Your day, and what you bring to bed
Optional. Leave it blank and the adult range of 7 to 9 hours is used.
What your answers actually measured
Where the score came from
Each bar is scored 0 to 100 on its own, then multiplied by the weight shown. The seven weighted parts add up to your score out of 100.
How this compares with published guidance
Recommended nightly range
Patterns worth looking at
| What you reported | Commonly linked to |
|---|
What stands out
Where to start
How the seven components are scored
| Component | Weight | What earns a high score |
|---|---|---|
| Duration | 20% | Time in bed inside the recommended range for your age band |
| Sleep efficiency | 15% | 85% or more of your time in bed spent asleep |
| Falling asleep | 10% | Asleep inside about 20 minutes, and under 30 |
| Waking refreshed | 15% | Waking clear-headed rather than groggy |
| Timing consistency | 15% | Similar bed and wake times every day, weekends included |
| Night-time disturbance | 15% | Few or no remembered awakenings, no loud snoring |
| Daytime load | 10% | Little evening caffeine or alcohol, screens off early, regular activity, stress under control |
Bands are wide on purpose. A score of 74 and a score of 78 describe the same sleep. What matters is which component sits lowest, because that is the one worth working on first.
How many hours adults actually need
The seven-to-nine-hour figure comes from two 2015 consensus reviews. A National Sleep Foundation panel published age-banded recommendations in Sleep Health: 8 to 10 hours for ages 14 to 17, 7 to 9 hours for adults from 18 to 64, and 7 to 8 hours from 65. The American Academy of Sleep Medicine and the Sleep Research Society published a joint statement in Sleep the same year with a simpler line: 7 or more hours a night for adults aged 18 to 60. The NHS quotes the same 7 to 9 hours for adults.
These are population ranges, not personal targets. Some adults are fine at seven, some need closer to nine, and the honest test is how you function during the day rather than what a number says. What the research is clear on is the direction of travel below the range. Cappuccio and colleagues pooled prospective cohort studies in the European Heart Journal in 2011 and found short sleep associated with higher cardiovascular risk. Being short is also normal: CDC survey data put roughly one in three American adults under seven hours a night.
The most uncomfortable finding on restricted sleep is from Van Dongen and colleagues in Sleep in 2003. Volunteers held to six hours a night for two weeks kept getting worse on cognitive tests day after day, while their own sense of how sleepy they felt flattened out early. People adapt to feeling tired long before their performance adapts, which is why self-assessment on its own tends to be generous.
Sleep efficiency, the number most people never calculate
Sleep efficiency is the share of your time in bed that you spend asleep. Sleep clinics calculate it from a full night's recording, and it is one of the few sleep numbers with a widely used cut-off: the National Sleep Foundation's sleep quality panel (Ohayon and colleagues, Sleep Health, 2017) treated 85% or more as appropriate for adults, along with falling asleep inside 30 minutes.
Here is why it changes the picture. Eight hours in bed sounds healthy. Take 45 minutes to fall asleep and wake three times, and you are somewhere near six and a half hours of sleep, which is an efficiency in the mid-70s. The hours in bed did not change. The sleep did.
This tool estimates your efficiency rather than measuring it. It subtracts the time you said you take to fall asleep, then allows roughly 15 minutes of lost sleep per remembered awakening. That 15-minute allowance is an assumption used to keep the estimate honest about broken nights, and it is not a clinical measurement. A real sleep study measures wake after sleep onset directly, and self-report and laboratory recordings do not always agree.
Five changes that move the number most
- Fix your wake time before your bedtime. Bedtime is hard to control because sleepiness arrives when it arrives. Wake time is a decision. Hold it steady for two weeks, including Saturday, and get bright light into your eyes within the first hour. Bedtime tends to follow on its own, and the consistency component is 15% of your score.
- Move your last caffeine earlier. Caffeine's half-life sits around five hours in most healthy adults, so half of a 3pm coffee is still circulating at 8pm. Drake and colleagues (Journal of Clinical Sleep Medicine, 2013) gave people 400 mg six hours before bed and still measured disrupted sleep in the lab. A 2pm cut-off is a reasonable place to start.
- Drop the nightcap. Alcohol genuinely shortens the time it takes to fall asleep, which is why it feels like it helps. It then suppresses REM sleep early in the night and fragments the second half as it clears. If you drink most evenings and wake at 4am, those two facts are usually connected.
- Get out of bed when you cannot sleep. Lying awake teaches your brain that bed is a place for being awake. Stimulus control, the piece of cognitive behavioural therapy for insomnia with the longest track record, says leave the bed after about 20 minutes, do something quiet and dull in dim light, and return when you feel sleepy. CBT for insomnia, not a sleeping tablet, is the recommended first-line treatment for chronic insomnia in NHS and AASM guidance.
- Dim the last hour and cool the room. Chang and colleagues (PNAS, 2015) had people read on a light-emitting tablet before bed and found suppressed melatonin, a delayed body clock and reduced next-morning alertness compared with a printed book. The National Sleep Foundation suggests a bedroom around 16 to 19 C (60 to 67 F). Low light and a cool room cost nothing and support two components at once.
What this score cannot tell you
It cannot detect sleep apnea. Apnea is diagnosed with a sleep study, either at home or in a lab, and the questionnaires clinicians use to decide who needs one are the STOP-BANG and the Epworth Sleepiness Scale. If you have been told you gasp, snort or stop breathing in your sleep, no score on this page is the relevant piece of information. That symptom is.
It cannot measure sleep stages. Deep sleep and REM percentages need electrodes, and consumer wearables estimate them from movement and heart rate rather than measuring them. It also cannot see whether your answers match what actually happened, since self-report and laboratory recordings often diverge, usually with people underestimating how much they slept.
Take these to a GP rather than a calculator: difficulty falling or staying asleep three or more nights a week for three months or longer, which is the frequency and duration threshold in the international diagnostic criteria for insomnia; falling asleep during the day without meaning to; witnessed pauses in breathing; and sleep problems alongside low mood or persistent anxiety.
Questions people ask about this tool
No, and the gap is the point of this tool. Time in bed includes the stretch before you fall asleep and every awakening after. Someone in bed for eight hours who takes 40 minutes to drop off and wakes twice is getting closer to seven hours of sleep, an efficiency in the low 80s. Sleep clinics work with efficiency for exactly this reason, and 85% or above is the commonly used marker for adults.
85 and above is strong across all seven components. 70 to 84 means solid sleep with one or two weak spots. 55 to 69 usually means the basics are in place and something specific is eating into the night, most often timing or evening habits. 40 to 54 points to several components pulling down together. Below 40 means most components are struggling at once, and that is worth a conversation with a doctor rather than another self-help checklist. These bands were set for this tool and are not clinical cut-offs.
Only to choose the right duration range. Recommended sleep changes with age, so a 16-year-old sleeping 7 hours is short of the 8 to 10 hour teenage range, while a 70-year-old sleeping 7 hours is inside the 7 to 8 hour range for over-65s. Age changes nothing else in the scoring, and leaving the field blank simply uses the 7 to 9 hour adult range. Your age is never sent anywhere, because nothing on this page is sent anywhere.
No. Sleep apnea is diagnosed with a sleep study, and the screening questionnaires that decide who gets one are the STOP-BANG and the Epworth Sleepiness Scale. Insomnia has formal criteria, including difficulty sleeping at least three nights a week for at least three months alongside daytime consequences. This tool will flag when your answers touch those patterns and tell you to see a GP. It will not label you, and it is not a substitute for either assessment.
No. The PSQI (Buysse and colleagues, Psychiatry Research, 1989) is a validated 19-item questionnaire scored 0 to 21 across seven components, where a global score above 5 distinguishes poor from good sleepers. This tool borrows the idea of scoring separate components and nothing else. It uses different questions, a 0 to 100 scale, weights chosen for this page, and it has not been validated against the PSQI or any other instrument. If you need a validated score, ask a clinician to administer the real one.
Nothing is stored and nothing is transmitted. Every calculation runs in your own browser. There is no account, no email field, no database and no request sent out when you press the button. Close the tab or press start over and the answers are gone. That also means your result cannot be recovered later, so use the print button if you want to keep a copy or show it to a doctor.
Once a month at most. The questions ask about a typical month, so a daily retake measures your mood rather than your sleep. Habit changes like a fixed wake time or an earlier caffeine cut-off usually need two to three weeks before the difference is real. Change one component, hold it for three weeks, then score again.
Sources used on this page
- Buysse DJ, Reynolds CF, Monk TH, Berman SR, Kupfer DJ. The Pittsburgh Sleep Quality Index: a new instrument for psychiatric practice and research. Psychiatry Research, 1989.
- Hirshkowitz M et al. National Sleep Foundation's sleep time duration recommendations: methodology and results summary. Sleep Health, 2015.
- Watson NF et al. Recommended amount of sleep for a healthy adult: a joint consensus statement of the American Academy of Sleep Medicine and Sleep Research Society. Sleep, 2015.
- Ohayon M et al. National Sleep Foundation's sleep quality recommendations: first report. Sleep Health, 2017.
- Van Dongen HPA, Maislin G, Mullington JM, Dinges DF. The cumulative cost of additional wakefulness: dose-response effects on neurobehavioral functions and sleep physiology from chronic sleep restriction and total sleep deprivation. Sleep, 2003.
- Cappuccio FP, Cooper D, D'Elia L, Strazzullo P, Miller MA. Sleep duration predicts cardiovascular outcomes: a systematic review and meta-analysis of prospective studies. European Heart Journal, 2011.
- Drake C, Roehrs T, Shambroom J, Roth T. Caffeine effects on sleep taken 0, 3, or 6 hours before going to bed. Journal of Clinical Sleep Medicine, 2013.
- Chang AM, Aeschbach D, Duffy JF, Czeisler CA. Evening use of light-emitting eReaders negatively affects sleep, circadian timing, and next-morning alertness. PNAS, 2015.
- Horne JA, Ostberg O. A self-assessment questionnaire to determine morningness-eveningness in human circadian rhythms. International Journal of Chronobiology, 1976. Roenneberg T et al., Munich ChronoType Questionnaire.
- American Academy of Sleep Medicine. International Classification of Sleep Disorders, third edition, 2014, for the insomnia frequency and duration criteria.
- NHS guidance on sleep, insomnia and cognitive behavioural therapy for insomnia. Centers for Disease Control and Prevention, Behavioral Risk Factor Surveillance System, for short sleep prevalence.
Compiled from the sources above by the Modern Vitality Hub editorial team and checked against them on 29 August 2026. It is educational content, not medical advice, and it has not been reviewed by a clinician.
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