Charts / Trends - Sleep as Android

Fall asleep hour regression model is a chart that helps you decide when you should go to sleep. The aim of this chart is to show you how changes in your fall asleep hour will affect your rating and deep sleep %.

This is a companion discussion topic for the original entry at

May be that when recording is auto only near the awake time, it record short / late sleeping time?

What does 4 mean here?

What exactly does this mean? Like I would be sleeping the whole day away if Follow what you are your Advice is trying to give me! What on Earth how can anybody sleep that long