A Canadian! W000t! Me too I am from there.
Sounds like Windows fails to sleep. And that you are sleeping your computer instead of shut it down.
Sleep issues are linked to bad or missing drivers.
You can generate a full report in Windows 7, by opening Command Prompt as True Administrator, and type: cd C:\ hit Enter.
Now type: powercfg -energy, and hit Enter.
Windows 7 will generate a nice HTML file. You see a lot of error linked to USB port, this is not necessarily something to worry about. I would keep everything bare bone, Mouse and keyboard (potentially 4 USB error), and see from there in ruling out any problem, by updating to the latest drivers, or install the latest drivers.
When the shutdown process fails, Windows will show "Shutting down...." and just stay there, with the green circle spinning and spinning, indefinitely (even after 2min)