Where Am I?

So I woke up this morning and looked around the room in which I slept. I didn't recognize it at all, and couldn't place it. The first thing that came to mind was that I maybe had a little too much to drink last night and went somewhere I shouldn't have, but I wasn't drinking last night... Then, after shaking off a couple cobwebs and looking more closely, I realized something even weirder... It was intense. I knew I had been here before, I just haven't seen this place in so long. It was a real shock to my system.

It was my bedroom.