Is it just me or do other people sleep at night

I must be one of the only people on campus who sleeps at night. The people on my floor obviously don't think anyone is sleeping. I was rudely awoken at 3:00 am this morning by the slamming of a door and the shouts of multiple disgruntled girls. I don't know what they were shouting about or why they were slamming their doors. Had it not been 3:00 am and had I had any energy I would have got up and told them to discontinue their bickering until daylight. However, had I done this I, myself, would have also slammed my door in discord. Thus, out of my respect of fellow slumberers I did not. Later at 5:30 am I was awoken by the loud howling of idiots outside my window. Things such as this would not irritate me so if I could fall asleep like my roommate does. She can be talking and mid-sentence she's out. I on the other hand have to lay in bed for an hour before I begin to drift off. So my sleep schedule was thoroughly destroyed. I got in bed at 1 am, fell asleep about 2 am, woke up at 3 am, fell asleep at 4:30 am, woke up at 5:30 am, fell asleep at 6:30 am, and got out of bed at 7:30 am to get ready for class.
So incase anyone out there has an encounter with me today and I don't look like I'm in a good mood, I'm not. I will not greet you with a smile and if you speak to me I may not answer. No one should take personal offense to this. Unless of course this is how I treat you everyday. Because then I probably just hate you.