A check

You slept four hours last night. On this lesson, what does going to bed two hours early tonight do?

Gives your body a chance to catch upSpreads the sleep you have across more hours in bed, and adds awake time in bedResets the body clockNothing much either way
Not quite

It feels like the obvious repair and it does the opposite. More time in bed does not create more sleep, so the same sleep gets thinner and more broken, and the extra hours awake in bed keep teaching the bed that it is a place for being awake. It is the single most common way a bad week becomes a bad year.