Today, I slept for only two hours because I was preparing for my presentation. Last night, I was talking with my friend on the phone while working on it, and before I knew it, it was 4 a.m. However, I had to wake up at 6 a.m. today. I managed to get a little sleep on the train. I also had a part-time job today, so I am even more tired. I want to go to bed early tonight.