The length of sleep often varies from night to night and can be very different from person to person. This is why it is important to measure your waking and going to bed habits using a sleep diary in order to get to know yourself better and ensure that you have good sleep hygiene. In addition to this, you need to know more about it.

In this context, the SANPSY unit (CNRS USR 3413) headed by Prof. Philip, the Bordeaux University Hospital and the University of Bordeaux, provide you with this free application allowing you to measure your sleep rhythms.