Up and still sleeping... or dreaming of being awake?

HAD been getting more sleep as of late... sometimes I even made it up to five or six hours... straight through. Last night... went to bed early again... before 1AM...  I seemed to be having a non-stop dream, and when I woke up, I was slightly disoriented. The first thing that crossed my mind was... did I wake up still dreaming or am I really awake and in the bedroom I went to sleep in? I wasn't absolutely certain until I went to turn the light on and it worked. I checked the time and it was... 4:40.

I've had this thing happen a few times over the years, where I would wake up from a dream, get up and go to turn the wall light switch on, only to find that it didn't work. I would even flip it a few times wondering what was going on. The light just wouldn't come on. I would go and try the switch in the kitchen or hallway and same thing there. The next thing I knew, I would be waking up again and doing the same thing. I think one of the nights this happened, I went through the same motions three times. I thought today would be one of those again, but it wasn't. Of course though, if it had been, I might still be sleeping.