How can I prevent Connected Standby from draining my battery?

I have a Dell Inspiron 7506 laptop that's less than a year old and updated to the latest version of Windows 11, and I experienced my first battery issue with it today. I charged the device's battery all the way to 100% last night, put it in my bag, and went to bed. Then, when I woke up in the morning and drove to campus, I took my laptop out of my bag to do work before class, and I found the battery to be at 42%.

I did some research online about how to check battery health metrics and I learned how to use the built-in Windows Command Terminal to generate a Battery Report. By analyzing the report, I found that something called "Connected Standby" was running on my laptop for 10 hours and 17 minutes on my laptop last night, draining 28,320 mWh of energy and using up 58% of the battery while it was just sitting in my bag, explaining why I found my laptop at 42% when I turned it on.

It seems that Connected Standby is something that turns on every time I close my laptop, but this is the first time that it has stayed on for such a long time. According to the report, the 2nd longest amount of time that Connected Standby ran for in the last three days (which is all that the battery report will give me) was 3 hours and 30 minutes, only draining 3,705 mWh of energy and using up 8% of my battery.

What caused my laptop's Connected Standby to remain running for over 10 hours last night, and what can I do to prevent it from happening again?