Music, I listen to them with the excuse "just one more song" and before I know it, I only got 3-4 hours to sleep left. Well, not only sleep, I have a national exam tommorow, yet here I am posting here via my ipod (to listen to the musics ofc).. I guess int is also a reason, but i can hold back.

The internet. Sometimes, I become frighteningly aware of all the time I have wasted but then I think 'nah can't stop won't stop'. ᕕ( ᐛ )ᕗ
I am driven by the belief 'It's not 'tomorrow' till I sleep'.

Lol, I'm much the same. I'd say the insomnia/ I just can't sleep option covers it though.

Depends. I picked insomnia, but really, it could have been just about anything. Novels mangas animes dramas or I'm just too lazy to get up and turn off the light, and thus spent two hours clicking mindlessly through random sites. I need to fix that light remote that got a bit... soaked... Other times, I'm just too into something and forgot to look up at the clock. I suppose that can be categorized as work.

But still, insomnia.

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Ditto! For some reason, the lure of fanfiction is much more stronger than manga for me...
I can pause my reading of a manga with a chapters or so but I always have the urge to finish fics before I go to bed!

I think you're missing an option or two. >.> <.< >.>
lol

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My cat doesn't understand the concept of a full night's sleep.

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The pen is mightier than the sword...and considerably easier to write with.

I have almost the same problem... but I can't stop reading AFTER I go to bed, and as it's hard to read manga on the phone... you can guess.

I'm with you there.