is it ok to take a day off of school?

I’m not sick, but I have a lot of independent work to get done that I just don’t have a lot of time for without losing a copious amount of sleep. I’ve also just been really stressed lately with college apps and the SAT approaching quickly, and I feel like a little break would really help.
Of course this is not to skip a test or a quiz, just to get work done and get a bit of sleep. Do you feel like my argument is justified?

I know plently of people who take days off for what they call “mental health days.” Just make sure you have an excused absence note for the school.