Mac sleep problems

My mac often won't go to sleep, and when it does, it will wake up on its own. I will often walk by my computer and see the screen on when I haven't been using it for hours. My Energy Saver settings are set to sleep in 15 minutes (computer and display).

The issue happens even if I close all applications, although I have Adobe Creative Cloud and Google Drive running in the top menu bar. The issue persists even after restart.

I am running a late 2013 15 inch MBP, Mojave 10.14.5.