I think the idea of trying to follow the same sleeping schedule day in day out is severely misguided. There are many variables which determine how much rest we

I think the idea of trying to follow the same sleeping schedule day in day out is severely misguided. There are many variables which determine how much rest we need, such as physical state, fighting off an infection, time of year, mental state, fatigue, stress, and so on. I've commented here before on this, but I think by far the healthiest practice (and one I've had great results with) is to sleep "to fullness" as much as possible, to allow yourself to go to sleep whenever tired, and also to not stress about not falling asleep when you're "supposed to", instead finding something else to do until tiredness overtakes.