Try to keep busy, eventually you'll get sleepy again, important thing is not to panic. Hope tomorrow is not too busy for you so you have time to sleep

Sorry to hear that, hope tomorrow gets better

I feel you, I call these "resets of sleep schedule", sounds great, then it only lasts 2 days and I'm messed up again T.T. at least the satisfaction from sleeping at that point is amazing, hope you'll feel great too :)