For years.
Last night I stayed up until about 7:30 in the morning, work at 9:45... Luckily, I just keep my own hours and it's not important as long as I don't go over 40 a week at my job... I have come in later than usual before ("errands?")...
I've been like this for years. It's probably part of depression/dysthymia/AvPD or whatever the hell to call it, me. Besides depression, the others don't seem like separate diagnoses as much as descriptions of what happens when you are depressed for a long time (15 years)...
Sometimes I think it's because my days are so dissapointing and boring that if I don't get as much in at night the whole day is that much more depressing. I don't even party most nights anymore (that's not how it started, either)... I'll just stay up compulsively and watch TV or movies and read the net...
I don't know anymore. I don't think I've consciously "gone to bed" for about as long as I can remember, usually I pass out on the couch (though sometimes I occassionally lie down in the bed and do fall asleep, but it's usually in clothes. This pattern wreaks havoc on eyeglasses, but it's better than when I used to leave my contacts in for a couple of months day and night...