About

SWIS was developed to address the very real problem of finding the point at which the user fell asleep listening to audiobooks, podcasts or other audio. Unlike visual recordings it is almost impossible in audio to accurately find the point in playback at which you fell asleep.

Using health data available from the Apple Watch SWIS App alerts you that you are falling asleep. If you don’t respond or pause playback then SWIS will pause playback automatically allowing you, when you wake, to continue listening from the point at which sleep was detected. Everyone is an individual and will have a different sleep point which can also vary from day to day. The sleep point of each user is calculated by the app and set each time the app is opened.

Do not rely on SWIS to alert you that you may be falling asleep when driving.