My Wife and I have one we leave on the end table where we watch TV and leave it plugged in all day.

Good question TIS since we often wonder if it gets hot and should be disconnected.

We typically unplug it if we know we are not going to be around or going to use it for awhile.

When we go away for a few days I hit the power strips for every to off.

Only thing I leave on is the fridge and the burner or Air.