This is more of a Windows problem than a Dell problem. Windows seems to be terrible at going to sleep and staying asleep. My current and previous Windows lapto

This is more of a Windows problem than a Dell problem. Windows seems to be terrible at going to sleep and staying asleep. My current and previous Windows laptops (neither were from Dell) are/were set to sleep for 15 minutes and then hibernate when I have the lid closed, because otherwise they would randomly wake up, deplete the battery, generate lots of heat, and sometimes wake me up in the middle of the night. I've also had desktop PCs with Windows that just refused to go to / stay asleep for various reasons including windows updates (that still hadn't completed a week later) and a documentation website that had a small silent video on loop (like an animated gif.) My 2019 MacBook is better about this; once it goes to sleep, it seems to stay asleep. But it's still not perfect - I hit an issue where the iOS simulator and/or the Android emulator caused it to stay awake with the lid shut and drain my battery. So now I do kill those before closing the lid. But it does feel safe to put in a bag once it's actually asleep.