Sleepy head

I am a sleepy head. I sleep about 8-10 hours a day. If I don't sleep enough time, I doze off all day. I try to reduce sleep times, I always fail that.
2 years ago, when I went to college to study interior architecture, I slept 1-4 hours a day. Did I doze all day? Of course! Even I selpt on stand up, I frequently fall down.
Many people reduce their sleep time, but why I don't? A beauty need much sleep times. That's why I can't reduce sleep time.
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......little joke. please don't hate me - _-;;;