Pokemon sleep uses up my battery

I just got a new phone and noticed that Pokemon sleep is the main app that uses up my battery. It’s about 26% so kind of a significant amount, considering other apps use less than 10. Has anyone else noticed this or have any ideas on how to use less battery (if possible)? I usually actually only check it a few of times a day, in the morning, for lunch, and a couple in the afternoon plus evening feeding. Not sure why I didn’t notice that it used up a lot of battery before..