Windows 10 got a inbuilt tool for trouble shooting sleep issues. It’s called sleep study and you run it by writing “powercfg sleepstudy” in an elevated command prompt. The resulting html page should show you what is draining power when the tablet is in sleep mode.
This function works rather well, I was able to improve the drain rate during sleep by a significant amount by reinstalling a driver, but it’s not showing me the “energy change” or “change rate” (which also renders the graph empty).
I would like to know if this problem is specific to just my set up or more generally to the tablet. So, if anyone has run the sleep study tool please tell me how it is working for you. Do you see a graph?