BioProfile analysis · sleep scan

You sleep your hours, and still the day starts with a shortfall. Five questions put a number on it.

Your result in 3 minutes

The result screen of the BioProfile sleep scan on a phone, with a sleep score of 45 and the reading band noticeable

Your sleep score over the past two weeks, with the reading band it falls into and, question by question, the number that pulled your score down or up. All on your own screen, in your dashboard.

Five questions about the past two weeks, modelled on a validated insomnia scale. You get a sleep score from 0 to 100, with the reading band it falls into. An analysis of your answers, never a diagnosis.

Free

5 questions

About 3 minutes

Score from 0 to 100

Fill in your first name and email address, and your sleep score is in your dashboard.

Five questions that uncover why you wake up tired even though you get enough hours

(and the scientifically supported reason why it is precisely these five)

You go to bed on time. You get your hours in, mostly. And still the alarm is a blow every morning: you struggle to get going, the first coffee does little, and halfway through the afternoon you are nodding off over your screen. You are not ill. You simply do not wake up rested.

The awkward thing about sleep is that you are not there for it yourself. How you feel during the day you know exactly; what happened during the night you have to reconstruct. And that is precisely where your memory lets you down: a bad night you remember, ten ordinary nights you forget, and how long you really lay awake is something no one knows who has to guess at it. So it stays a feeling about a night, and a feeling about a night is not a measurement.

Sleep researchers solved that by asking about a pattern instead of about one night: how long you take to fall asleep, how often you wake up, how rested you get up, how satisfied you are, and what it costs you during the day. Five questions about two weeks, added up into a score from 0 to 100. Not a diagnosis. But a number. And a number is something you can follow.

The first two questions of the BioProfile sleep scan, about falling asleep and waking in the night, each with five answer options
Questions 1 and 2 of 5. For each question you pick the answer closest to your nights over the past two weeks.

Most people start at the solution

To bed earlier. No screens after ten. A new mattress, a sleep app, two weeks without coffee. All sensible, and all of them start in the same place: with what you are going to do about it.

So after three weeks you still do not know whether it did anything. You never wrote down where you started, and sleep is exactly the area where your memory helps you least. Without a starting value, every change is a feeling about a feeling.

We analyse the real cause first

At BioProfile we turn the order around. First measure what is there now, with questions modelled on a scale someone else has validated, and only then talk about what you do with it. Analyse first, advise after.

The sleep scan is the first step of that analysis, and one of the shortest.

The question about what you would most like to improve, in the BioProfile scan, with better sleep ticked
The scan starts with what you want to improve.

What you get back in about three minutes

You start with eight short questions about yourself. They do not count towards your score; they make sure we can read the rest properly. One of them you may skip.

Then come the five sleep questions, about the past two weeks: how long you take to fall asleep, how often you wake up at night, how often you get up rested, how satisfied you are with your sleep, and how much poor sleep bothers you during the day. Each question has five answers.

You fill in your first name and email address. You see a first picture straight away, and with a tap on your dashboard your sleep score is there on your screen, with the reading band alongside it. In your email there is a login link, so you can find your result again later and extend your scan into your full BioProfile.

Start screen of the BioProfile sleep scan with the button to begin
Where you land when you click the button on this page.

This is what is on your screen after about three minutes:

  • Your sleep score from 0 to 100, over the past two weeks
  • The reading band your score falls in, from high symptom burden to low burden
  • For each question, how heavily it weighed on your score, from low to high, so you can see where the trouble lies
  • An honest limit: what a questionnaire about sleep can and cannot say
  • A login link in your email, so you can keep your result and repeat it in two weeks
The screen where you fill in your first name and email address to see your result
First name and email address, and your first picture is on your screen.

Repeat the scan in two weeks and you no longer have a feeling about your nights, but two numbers.

Fill in your first name and email address, and your sleep score is in your dashboard.

What we ask you

This scan is about the past two weeks. You get five questions about your sleep, and for each one you pick the answer that comes closest to your nights.

  • Time to fall asleep
  • Waking up during the night
  • Waking up rested
  • Satisfaction with your sleep
  • What it costs you during the day

Every question counts equally. The software then reads your answers back to you question by question, from low to high, so you can see which of the five pulled your score down the most.

Questions 3 and 4 of the BioProfile sleep scan: how often you wake up rested and how satisfied you are with your sleep
Questions 3 and 4. The same two weeks, two other sides of the night.

What this scan is based on

modelled on

Insomnia Severity Index

Seven questions about the last two weeks, scored from 0 to 28, with a screening cut-off from 10 in the general population (sensitivity 86 per cent, specificity 88 per cent) and an internal consistency around 0.90. Our sleep questions follow the same construct and the same two week look back: how long you take to fall asleep, waking up during the night, how rested the night was, satisfaction, and what it costs you during the day.

Modelled on, not validated as, this instrument.

Validated for: severity of insomnia complaints and treatment response.

Morin and colleagues, Sleep, 2011.

What this scan cannot tell you

What a questionnaire can and cannot do here

Self-report is a valid way to show the burden of sleep quality and insomnia symptoms. It cannot establish a sleep disorder, and the questions above are worded by us and modelled on a validated insomnia scale instead of being a licensed copy of it. So this is a structured, scientifically grounded picture and not a validated clinical score. That is also why your reliability reads medium and not high: only sleep data from a wearable or a sleep study can lift it.

BioProfile scoring rules, measurement class A, reliability capped at medium on the basis of questionnaire data alone.

How your score is built up

Each of the five questions is given 0 to 4 points, from little trouble to a lot of trouble. The points are added up and converted into a sleep score from 0 to 100. Higher is better.

0 to 39

high symptom burden

40 to 59

noticeable

60 to 79

mild

80 to 100

low burden

Reading bands, not clinical cut-off values. Your questions about sleep and recovery are worded in house and modelled on validated instruments, so no published cut-off value applies to precisely this score. Higher is always healthier.

This scan falls into measurement class A: a questionnaire is the usual way of measuring here, and even so the reliability of your score stays capped at average as long as only your answers count. What lifts that ceiling is sleep data from a wearable or a sleep study, and you can add a wearable in your full BioProfile.

On your results screen that reliability appears as a label next to your score: medium reliability, symptom based. That label is not an aside; it tells you exactly how much weight you may put on the number.

The sleep questions read back on the result screen of the BioProfile scan, each with your answer and a score from 0 to 100
This is how the software builds your score: each question gets its own number from 0 to 100, the lowest at the top.

What the science says about this

This page describes a measuring instrument, so below you can read where that instrument comes from and what has been studied about it. Every claim points to the source it appears in.

A third of the Netherlands sleeps badly, and almost nobody measures it

In 2012 Kerkhof put a validated sleep questionnaire to a nationally representative sample of 2,089 Dutch people between 18 and 70. More than three in ten reported a general sleep disturbance, more than four in ten too little sleep, and 8 per cent met the description of insomnia.⁠1

That picture is not a Dutch one. In 2002 Ohayon brought together more than fifty population studies: about a third of the population has at least one insomnia complaint, in 9 to 15 percent it also has consequences during the day, and about 6 percent meets the strictest description of insomnia.⁠2 In 2021 Van Someren called insomnia the second most common mental disorder.⁠3

Three in ten, and hardly anyone has a number for it. That is the reason this scan exists.

Why how your night feels is a poor yardstick

In 2012 Harvey and Tang set out the research on how sleep is perceived. People with sleep complaints systematically overestimate how long they lie awake and underestimate how much they actually sleep, compared with objective measurements. That tendency is almost general, although it is not universal.⁠4

That is why no serious sleep instrument asks about one night. In 1989 Buysse and colleagues built the Pittsburgh Sleep Quality Index around one month and seven components, from time taken to fall asleep to daytime functioning, and showed that structured self-reporting of this kind tells good sleepers from poor ones.⁠5 The questions in this scan follow the same thought: a pattern over two weeks, split into the components that matter.

Why these five questions

Morin’s Insomnia Severity Index counts seven questions about the past two weeks. In 2011 Morin and colleagues tested it in 959 people from the general population and 183 people in treatment: internal consistency was 0.90 and 0.91, and the score told insomnia from healthy sleep with a published cut-off value.⁠6 In 2001 Bastien and colleagues had already shown that the scale moves with sleep diaries and with sleep studies, and that it picks up change after treatment.⁠7

Gagnon and colleagues repeated that in 2013 with 410 patients in general practice, with an internal consistency of 0.92.⁠8 And because you fill in this scan online: in 2011 Thorndike and colleagues compared the online version with paper and found an agreement of 0.98 or higher.⁠9

Our five questions follow the construct and the look-back period of that scale, in our own words. They are not a copy of it, and the card above says so in as many words.

What a low score means, and above all what it does not mean

The European guideline for insomnia, updated in 2023 by Riemann and colleagues, puts questionnaires and sleep diaries at the front of the examination by a doctor, alongside the conversation itself. A sleep study in the laboratory is there to pick up other sleep problems when there is reason for it, such as pauses in your breathing during sleep.⁠10 In 2013 Buysse described the same order in JAMA: what a doctor establishes follows from the history and a sleep diary, and insomnia affects an estimated 10 to 20 percent of people, in about half of them long term.⁠11

So a questionnaire is a good first sieve, and a first sieve is something other than a result. A low score means that looking further is worthwhile, and nothing more. Loud snoring with pauses in breathing, or falling asleep unintentionally during the day, are reasons to see a doctor, and only a doctor can make a diagnosis.

Why sleep is worth measuring

In 2011, Baglioni and colleagues pooled twenty-one long-running population studies: people with insomnia were twice as likely as people who slept well to develop low-mood complaints later.⁠12 In 2019, Hertenstein and colleagues extended this to thirteen studies and found a raised risk of low-mood complaints, anxiety complaints and problematic alcohol use.⁠13

In 2010 Cappuccio and colleagues followed almost 1.4 million people across sixteen studies: both short and long sleep were associated with higher mortality, short sleep with 12 percent more, long sleep with 30 percent more.⁠14 In 2011 Kessler and colleagues worked out among 7,428 working people what insomnia costs at work: the equivalent of a good eleven days of lost work performance per person per year.⁠15 In 2015 the American sleep societies reached a consensus of seven hours or more a night for adults.⁠16

That is association, not cause, and that is how those studies put it too. What it does say: sleep is not the soft part of health that you look at some other time.

That is what the scan rests on. Now for your sleep score.

Fill in your first name and email address, and your sleep score is in your dashboard.

Written by

Jesse van der Velde

Founder of BioProfile

Jesse van der Velde

Since 2006 they have guided people towards a new body and optimal health, and have written or co-written fifteen books on nutrition and health. Forever Young (2012) and Superfood Recipes (2013) both reached number 1 in the Netherlands.

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Published on 27 August 2026 · Last updated on 27 August 2026

This page was written by BioProfile. BioProfile sells health products and this scan is free: no purchase comes with it. The Insomnia Severity Index is not ours and is not free to use. That is why we ask our own five questions, modelled on that instrument, and nowhere do we call them a validated copy of it.

Sources

Every source below was checked on the day this page was published. The numbering follows the text: source 1 is the first one the text refers to, and the instrument the scan is built on sits among them at the point where it comes up.

  1. Kerkhof GA. Epidemiology of sleep and sleep disorders in The Netherlands. Sleep Medicine, 2017. doi.org/10.1016/j.sleep.2016.09.015
  2. Ohayon MM. Epidemiology of insomnia: what we know and what we still need to learn. Sleep Medicine Reviews, 2002. doi.org/10.1053/smrv.2002.0186
  3. Van Someren EJW. Brain mechanisms of insomnia: new perspectives on causes and consequences. Physiological Reviews, 2021. doi.org/10.1152/physrev.00046.2019
  4. Harvey AG, Tang NKY. (Mis)perception of sleep in insomnia: a puzzle and a resolution. Psychological Bulletin, 2012. doi.org/10.1037/a0025730
  5. 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. doi.org/10.1016/0165-1781(89)90047-4
  6. Morin and colleagues, Sleep, 2011. pmc.ncbi.nlm.nih.gov
  7. Bastien CH, Vallières A, Morin CM. Validation of the Insomnia Severity Index as an outcome measure for insomnia research. Sleep Medicine, 2001. doi.org/10.1016/S1389-9457(00)00065-4
  8. Gagnon C, Bélanger L, Ivers H, Morin CM. Validation of the Insomnia Severity Index in primary care. Journal of the American Board of Family Medicine, 2013. doi.org/10.3122/jabfm.2013.06.130064
  9. Thorndike FP, Ritterband LM, Saylor DK, et al. Validation of the Insomnia Severity Index as a web-based measure. Behavioral Sleep Medicine, 2011. doi.org/10.1080/15402002.2011.606766
  10. Riemann D, Espie CA, Altena E, et al. The European Insomnia Guideline: an update on the diagnosis and treatment of insomnia 2023. Journal of Sleep Research, 2023. doi.org/10.1111/jsr.14035
  11. Buysse DJ. Insomnia. JAMA, 2013. doi.org/10.1001/jama.2013.193
  12. Baglioni C, Battagliese G, Feige B, et al. Insomnia as a predictor of depression: a meta-analytic evaluation of longitudinal epidemiological studies. Journal of Affective Disorders, 2011. doi.org/10.1016/j.jad.2011.01.011
  13. Hertenstein E, Feige B, Gmeiner T, et al. Insomnia as a predictor of mental disorders: a systematic review and meta-analysis. Sleep Medicine Reviews, 2019. doi.org/10.1016/j.smrv.2018.10.006
  14. Cappuccio FP, D’Elia L, Strazzullo P, Miller MA. Sleep duration and all-cause mortality: a systematic review and meta-analysis of prospective studies. Sleep, 2010. doi.org/10.1093/sleep/33.5.585
  15. Kessler RC, Berglund PA, Coulouvrat C, et al. Insomnia and the performance of US workers: results from the America Insomnia Survey. Sleep, 2011. doi.org/10.5665/SLEEP.1230
  16. Watson NF, Badr MS, Belenky G, 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. doi.org/10.5665/sleep.4716

Start your sleep scan

Five questions, about three minutes, and your sleep score is in your dashboard. Your answers stay private (GDPR).

Fill in your first name and email address, and your sleep score is in your dashboard.

Other scans

What this does not say. This reads the sleep burden you describe, not the cause of it. It cannot tell you whether something is physically disturbing your sleep, for example breathing, pain or hormonal changes, and it is not a sleep study. Loud snoring with pauses in breathing, or falling asleep during the day without meaning to, are reasons to see a doctor and not reasons to work on a score.