A big problem for people who are permanently in a wheelchair is that they do not move around enough in the chair. This can result in serious problems, like decubitus (better known as bedsores) or growths of the spine. For this, Sibe was developed. Sibe is an addition to your wheelchair, where four sensors are placed underneath the wheelchair pillow. These measure how the user is sitting in the chair and can show this live in an specially developed app. This app also shows a summary of the different days and gives tips on how to improve your sitting behavior. Finally, a reminder can be added for when the user is sitting still for a too long period. This can be done with vibration in the back as shown on the image, on a different location or even by giving auditory feedback.