Polyman is an EDF/EDF+ viewer and manual sleep scoring program that was originally created by Marco Roessen and Bob Kemp. Since 2014 the program is maintained by Diego Alvarez-Estevez.

EDF and EDF+ files are commonly used in EEG and Sleep investigations, but can be used for almost any (also non-medical) sequential time series and event lists. The specifications of the EDF/EDF+ file format are on www.edfplus.info and also in the following articles:

- Kemp B, Värri A, Rosa AC, Nielsen KD, Gade J. A simple format for exchange of digitized polygraphic recordings. Electroenceph. Clin. Neurophysiol. 82, 1992:391-393.

- Kemp B, Olivan J. European data format 'plus' (EDF+), an EDF alike standard format for the exchange of physiological data. Clinical Neurophysiology 114, 2003: 1755-1761.

Free version of Polyman for MS-Windows 10 and older checks EDF(+) compatibility of your files and shows their signals, scorings and other annotations, and any video data. It offers several automatic EEG/EMG analyses and manual sleep scoring. It comes with demo PSG's, video and scorings. The technicians in the Den Haag sleep centre use this program to score and analyze about 2500 PSGs every year, coming from various EDF(+) compatible recorders. If you want to try it, just start with the Tours that are in the User manual (see Help).


Last version of Polyman is available from the www.edfplus.info downloads section.


We are relatively good at EDF/EDF+ and Sleep scoring, but we make mistakes. Polyman and Polyman Report are complicated software that inevitably contain mis-interpretations, mistakes, and bugs. We cannot and do not accept any liability for damages related to the use of Polyman. We sincerely urge you to regularly check all results obtained with Polyman. We cannot guarantee the safety and integrity of your data. It is not our intention that you use Polyman for medical diagnosis or therapy and it has no CE certification. That said, we are using Polyman for thousands of sleep recordings each year in our own Sleep Centre, so we think that Polyman is safe and efficient.

Polyman Report was tested on Win98/2000/XP/NT/Vista/7-10.

This information addresses the situation as of February 2017.

User License

Polyman is freely distributed, however it is not open source.

A major reason to develop and freely distribute Polyman, is that we want to promote the use of EDF+. Because EDF+ exists, Sleep and EEG labs can contribute to multi-center research projects, archive and retrieve their recordings and scorings indefinitely, and be free from vendor-lock.

EDF+ is the only data format for Sleep and EEG investigations that is accepted by most companies and researchers. But because of commercial reasons some companies prefer their own, proprietary, format. And for scientific or personal reasons, some researchers want to promote their own personal data format. Those companies and researchers would modify Polyman in such a way that it also reads their data format. In this way, Polyman would no longer promote the use of EDF+ and the Sleep and EEG community would risk a standards war.

Therefore, Polyman is not yet open-source. We try to keep it so attractive (and affordable) that more researchers and labs will want to use it and thus strive for EDF+ compatibility. Polyman then helps them to check EDF+ compatiblity of their recordings and scorings.