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About us

About Slaapwijzer

Slaapwijzer is an independent sleep encyclopedia about poor sleep. We translate science into a clear, sourced answer to every sleep question — without selling anything. No affiliate links, no ads, no stake in which remedy or product you choose.

A verdict for every claim

What sets us apart: we don't judge individual studies but the whole body of evidence per claim, GRADE-style — strong, reasonable, weak or insufficient evidence. Where the evidence is limited or conflicting, we say so honestly.

Verifiable sources

We cite only verifiable, preferably peer-reviewed or authoritative-institutional sources. Every article lists the full reference list with working links so you can check everything yourself. See the knowledge base.

Not medical advice

Slaapwijzer does not give medical advice or make diagnoses. If your sleep problems persist, you take medication, or you are worried, always consult your doctor.

Veelgestelde vragen

Do you sell mattresses, supplements or sleep products?
No. Slaapwijzer sells nothing and has no affiliate or advertising interest. We are an independent, non-commercial knowledge platform about sleep.
Do you give medical advice?
No. Slaapwijzer does not give medical advice or make diagnoses. If your problems persist or you are worried, always consult your doctor.
How do you judge whether something works?
We assess the whole body of evidence per claim, GRADE-style (strong, reasonable, weak or insufficient), and lean on guidelines from bodies such as the Dutch College of General Practitioners (NHG), the AASM and the European insomnia guideline. Every page lists the sources so you can check them yourself.