3 am? Woah but I understand. I do it all the time too. Sometimes even when I have a class at 8am :p
when i don't have work the ff day i sleep when the sun starts to rise!XD...but until 3am or 4am on worknights...lol...and i sleep almost all day...i'm an owl!XD
I think for each round as long as a girl gets 2 immune votes or 2 boot votes she gets immuned/booted out just for that round. But if she gets 7 votes in total for immune/boot throughout the rounds she gets immunity/booted out for good. Am I right? I'm confusing myself 
now i'm more confused...lol...i think the immune/boot votes accumulates through the rounds....
for example:tanaka:heart:reina
round 1
# of immune votes: 5
# of boot votes: 2
final tally: 5,2
round 2
# of immune votes: 2
# of boot votes: 3
final tally: immuned - she started with a 5,2 score on this round so + 2 votes on this round she got immuned otherwise she would have been booted out if there were 5 boots that came before the 2 immune votes.
round 3
she is immuned for this round:D
round 4
her score is reset to 0,0 in this round so its voting time again!:D
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when a girl is booted she's out of the game but if a girl is immuned she'll
be immuned in the round following the round she was immuned in and will
be available for votation after her round of immunity:D
now...i'm hungry!XD