Night Photography

I got this idea little while ago... it was night and I had very unusual light in my room and since I couldn't fall asleep, I decided to take a picture of me, while sleeping. You know tripod and long exposure and here we go! Unfortunately the longest time of my camera's shutter speed is 30 sec. maybe if it was longer, I wouldn't have such a dark shots, but truth is it's suitable to the night. I just wish it would capture for example an hour. I guess I will have to go back to 1870...