Being sleepy can be a sign that you're trying to do things you're not meant to do. I often have this happen when trying to force an activity thinking I "have to" do something at a set time. But once I just give in and go take a nap, I learn something that was waiting for me to step away from the activity. It's often that some entity shows up or I get up 10 min later and take a walk and suddenly have an idea and see something new. Something which was blocked from entering by trying to be hard headed and forcing my way forward.

Trypper (who's not actually here now but anyway, I hope it's ok to share this) kept getting very sleepy when trying to study medicine. The Queen said this is what saved him, because dedicated medical students all go to hell. She said doctors "have no life" and study viruses all day, which turns them into something less than human.

So start examining what your sleepiness is keeping you from doing, and if you really should be doing that thing. Being protected from your own intent can take this form.

Also, trying to illustrate this with some stock photos and it's all cuck pics, at least I know why now. Here, have an almost-Trypper and an almost-vampire.