How and where to read “Resting Calories”

So I’m trying to figure out how many calories I burn when I sleep through the standard Apple Fitness app that’s already downloaded to my iPhone 12 and Apple Watch Series 3.

Ive looked up articles yall provide online, and their are certain features it seems Im missing to access the information I need. I’ve unpaired my Apple Watch and paired it back to my phone multiple times. I’ve turned the watch on/off several times and I’ve also turned my phone on/off multiple times as well, still can’t figure it out.