I've been staying up until 5 AM lately. FML.
I was making progress going to bed earlier (by which I mean 2AM) but then I got Persona 3 and that all went down the drain.

I love staying up late. Although, it's nice to sleep early once in a while. Catch up on some sleep.
I catch up on my sleep on weekends. Sometimes.
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gahh I LOVE staying up late. it gives me the complete solitude that I need once in awhile, y'know?
But on schooldays or stuff like that I'm in bed at 10pm. which is an average time. lol.
Staying up late all the way. I get bored going to bed at a resonable time 8D

I love staying up late for no reason :)
I love staying up late, makes me feel like i've used more of the day ^_^
Although staying up late on school night=death :(
I love sleep, so I usully stay up until around one or two in the morning and wake up at around 11ish.
i usually stay up until 2-3 am and have to get up about 7:30-8 in the morning. i overslept today though ... oops =P
I'm a nightowl by nature, so staying up late is my preference. And, sleeping in is one of the things I live for. I fucking hate early mornings.
I'm the type who hates to go to sleep, but once I do, I hate waking up. I honestly think my body clock runs on a 36-hour schedule, or something.
24 hours a day doesn't work for me. :(
I.. just don't stay up late. I'm almost always to bed early on weeknights, and most weekends I go to bed around 12. Staying up til 1am is OMG SUPER LATE for me. I get up around 8 or 9 am on weekends/free days. For school I have to get up at 6am, so going to bed early is a must for me.
staying up late, because if i decide to go to bed early, i normally cannot sleep anway.
plus, if i stay up late, i can just have a 'cheeky nap' one weekend afternoon to catch up on lost sleep c:
Staying up late, definitely.
I do it ALL the time in Summer. I believe there was only 2 weeks out of my whole summer where I went to bed before 4 A.M. ^_^;
I love sleeping in until noon, going to swim and do other outside activities, and relaxing online until late at night. ❤️
I only go to bed early when I've had a long-ass week at school.
But other than that, I stay up all night and have myself a wild party with my brother XD
In the summer, I sleep late, only because it's too cold to swim in the morning, and I can never wait to get out there, so I just stay in bed :P
I like staying up late on the weekend. I just watch late night TV or play video games. If I stay up late and play online games, there's usually more people online. Dunno why. I love sleeping though, so sometimes I go to bed early and get a good night's sleep just because it feels nice.

I like going to sleep early and waking up early.
For some reason, early morning jives more with my spirit than late night.
I used to love staying up late on school nights, just because my body had adapted to running long days on a few hours of sleep.
I have a job now and I work the night shift, so I'm working anywhere from 11pm to 1am depending on which night and how piled up the work gets, but I can still go to bed when I get home and get up at 7 in the morning.
The only time I really sleep in and get more than about 5 or 6 hours of sleep is when my friends are around, because the day after a night of staying up with them seems to exhaust me more than working does XD
Hah. If I go to bed early, I can't function properly. I keep waking up in the night at random hours, no matter how tired I might be. Stayin' up Late Late Late, is FTWWW.