Validation of the Sleep Assessment Algorithm in the Medical Application Nightly

The Nightly application will be installed independently on the user's smartphone. Once the user has set up their account and has logged in, they can then perform regular sleep quality assessments. In order to record a measurement, the user must first select a film (first screen) and watch it (second screen), the visualizations and acoustics aid in the process of falling asleep. After the film finishes, the participant places the phone on the corner of the bed, firstly with the screen facing up, and then under his/her pillow. Throughout the night, the application registers sleep phases that will be analyzed later.