>>10145000Luna's sleep schedule is straight up unpredictable and chaotic. Mio also mentioned this during her golden week totsu thing.
Just based on times when I see the "oha-chu" tweets and also one stream she mentioned what time she got up, one week Luna will be waking up at 6-8 AM then the next she's waking up at times like these then the next she's waking up at like 3 AM, 6 PM, so on and so forth. I've even seen her flip her schedule around within a day
I think she only deliberately fixes it when she goes out with family or something important is coming up