Basically I think Ive realised why Im so lazy and sleep till the afternoon. I always have to wait until my dad goes to bed before I can (or else he wakes me up getting ready for bed and I can't get back to slepp) which is about 12 - 1.00 am. So I then go to bed, he gets up at 4.00 am for work (on his days off he gets up at about 6.00) then I always wake up too and after this 3 - 5 hour sleep I can't get back to sleep again. So I either lie in bed trying to get to sleep for ages (in which case I fall aslepp at 9.00 and wake up at 1.00) or I get up, do something then go back to bed.
Ive tried getting up and staying up at 4.00 or 6.00 so I'l be tired the next night but the same happens. Has anyone got any ideas? This even happens when I take sleeping tablets.