The difference and usage of 刚才 and 刚刚 What is the difference between 刚才 and 刚刚?

For example, 我刚才起床 and 我刚刚起床? Don't the both accomplish the same thing? 刚刚 means now and 刚才 means just now, right? Or does 刚刚 just less formal than 刚才?
刚刚 is an adverb.
刚才 is a noun.




我刚刚起床 means: I just got up.

我刚才起床 is kind of nonsensical as it is as it means something like:  I a moment ago got up.



刚刚 is going to be the more likely choice when you're expressing things you did just now a moment ago.