Nederlandse vereniging voor Slaap- en Waak Onderzoek

Dutch Society for Sleep-Wake Research


Dr. Ysbrand van der Werf


Presentation held during the ANSS meeting in: Brussels, Belgium, 28. – 30.04.2016 (PDF)

Foundation year



Number of members


Composition of members (degree, specialties, subspecialties, etc.)

Basic research, Psychologists Neurologists, Clinical neurophysiologists, ENT, Pulmonologists, Pharmacologists, and Students

Historical perspective of the society

1985 Foundation of NSWO, Nederlandse vereniging voor Slaap- en Waak Onderzoek (Dutch Society for Sleep-Wake Research)
Yearly 2 meetings
Since 1989 yearly report of Sleep-Wake research in the Netherlands
Since 2008 International Sleep Medicine Courses every 3 years
Since 2011 accreditation of Sleep Medical Centres

Important sleep physicians / researchers in the history of the NSS

P. Visser, first researcher of sleep systems in animals
A. C. Declerck first Sleep clinician
Rutger Kopland or Rutger (Rudi) P. Hendrik van den Hoofdakker, psychiatrist and writer, who discovered light therapy to treat depression,
A. Knuistingh Neven, first GP to study sleep, book Modern Sleep Medicine (1999)
A. M. L. Coenen, A. L. van Bemmel, G. S. F. Ruigt, H. A. C. Kamphuisen, G. A. Kerkhof, T. de Boer,
D. Beersma, M. G. Smits, A.W. de Weerd, E. van Someren, G. J. Lammers, S. Overeem, J. Verbraeken,
H. M. J. C. Verbeek, H. L. Hamburger.

Number of Sleep Medicine Centers

In 2011: 3 official accredited General Sleep Centres, and 80 OSA centers
In 2012: 10 more General Sleep Centres will be accredited according to ESRS rules

Accreditation / Certification procedure

Foundation for Accreditation of General Sleep Centres in the Netherlands
according to ESRS guidelines as published in 2006

Educational programs

Since 2008: International Sleep Medicine Course (with B and UK), every 3 years a 4 full day course on physiology and clinical aspects of sleep/wake.
In Nov 2011 2 parallel courses (basic and advanced) including half day hands-on sessions with 115 trainees from all over Europe, Australia and USA

Present activities, working groups, task forces

Clinical workgroups have been founded by Dentists in Sleep, Pulmonologists in sleep, Neurologists in Sleep, Psychologists in sleep, Technicians in sleep

Study groups for:

Alertness Management and Vigilance
Circulation and Sleep
Movement Disorders
Surgical Methods of Therapy
Training and Education


NSWO organizes 2 conferences per year on sleep medicine and sleep basic research.
Abundant basic research and clinical studies have been performed and are under way on Narcolepsy, OSA, Bruxism, Light therapy, RLS, see also above.

February 21, 2019
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