I either get too little sleep or too much sleep.
If I have work or class the next day, I'll go to sleep way too late and it takes me, like, a decade to fall asleep, as I have a hard time turning by brain off.
Some nights, or days, I'll sleep for 12+ hours.
Last night, I got 4 hours. Tonight I'll get 3 or 4, tomorrow I'll probably get 12.