Sleep so horrible somehow.

... I went to sleep at 7pm. but, i woke up at 11pm?? why did i only sleep for a few hours. why didnt i wake up at 4 or 5 am like a normal person? thats so wannoying beasue now i cant go back to sleep. So, now i have to stay up the whole night and go to beda t like, noon. wwwaaaa