Sorry, you are correct. However when it first takes place, when there is more “deep sleep” work to be done, it is very brief, and becomes the more dominant aspe

Sorry, you are correct. However when it first takes place, when there is more “deep sleep” work to be done, it is very brief, and becomes the more dominant aspect of sleep after that work has been done: https://upload.wikimedia.org/wikipedia/commons/thumb/3/3e/Sleep_Hypnogram.svg/391px-Sleep_Hypnogram.svg.png https://upload.wikimedia.org/wikipedia/commons/thumb/3/3e/Sl...