That theory would only work if sleep caused me to feel refreshed. But I don't think any of us have ever had the experience that more sleep lead to more awakeness. It's not as if we are well rested after 8 hours of sleep, and even more energized by 9 hours of sleep, and even more energized by 10 hours of sleep, and even more energized by 11 hours of sleep, etc.
I think most of us have had the experience of over-sleeping, and then being strangely groggy all day. Certainly, most of my friends have had that experience.
That may be because your sleep deficit is say 20 hours and your need 8 (6 if lucky) to break even so you need something like 10 hours a day for 10 days to catch up.
All this is to say I occasionally feel groggy but if I consistently sleep “a lot” I feel great after a few days.
I think most of us have had the experience of over-sleeping, and then being strangely groggy all day. Certainly, most of my friends have had that experience.