iPhone 15 Pro Max battery drain during sleep

So I just recently got a new phone in September, an iPhone 15 pro max. I’m not trying to flex, im just saying the type. Whenever I sleep and I don’t charge it, it’ll drop at least 25% every time. Last night I went to sleep with it at 56 I believe, now, when I woke up, it was at 28.

Im completely lost as I don’t have background app refresh on, I leave little to no apps open and I can’t connect to WiFi where I am. So please, if there’s a way to fix this I would be appreciative.

[Re-Titled by Moderator]