I don't know about you, but when I lay sole to mill, I turn into a hydrant of perspiration and saliva that graces a good 3 foot zone of terror around me.
Might want to get a small umbrella or something, just in case.
I do this exact same thing. However, the speakers aren't loud enough to overcome the sound of the treadmill + walking. Hooking up a pair of external computer speakers was essential (especially since Netflix doesn't have captions).
I also cover up the time and LED display on the treadmill, makes the time go by "quicker".