I sleep at 10:00pm, and 12:00am when my computer game addiction takes over. I wake up at 6:00 am when I have school, 7-9am when I don’t, and 10am to 12pm when I decide to go to sleep again. 
Weekdays: 10:00pm-6:25am
Weekends: 11:30pm-9:00am
Summer: 2:00am-2:00pm
When I have to. 
Usually sleep around 8-10pm
With insomnia it’s usually sleep at 6am and rise at 6:30 am
Vacations and weekends I wake up anytime between 8am-12pm
weekdays: 5am - 8am then 9am - 4pm
Weekends: 5am+ - 5pm
Sleep 21-22:00 Wake:-6-7:00 most days at current
I have no such thing as a fixed sleep rhythm, but there are some main patterns: 3 am-1 pm in “free” times, and 12 am-8 am when i have early work. There is also 3 or 4 am-7am+10am-2pm on travel or warehouse days, or 9 pm-2 am+4 am-12 pm if i am extremely sleepy. And there is 6am-9am in insomnia periods like now.
I usually goto bed at between 06:00am-08:00am… The clock is now 05:40. The time i wake up is pretty random, but i can say that i rarely see the sun in the winter/fall 
The sun? What is this thing of which you speak?
/me has a messed up sleep schedule 
I should be sleeping right now.
/me usualy goes to slep between 11pm and 2am on weekdays in the weekends and in the summer
/me then gets up about 7am in the weekdays and 10am to 12am in the weekends and summer
- School days: sleep-9.30/10PM, get up-7.10/7.15AM
- Weekends: sleep-anytime from 10 to 12PM, get up-from 8AM (rare) to 10,30AM (If I’m destroyed by the week)
- Summer: count heat, mosquitos and subsequent disgust, I go to sleep late and get up early. I also lose the little hunger I have normally, btw…
I think about 1am - 10am is the time I would sleep best.
I have trouble actually stopping myself from going back to sleep though so my sleep schedule gets screwed up all the time.
This week I’ve been going to bed around midnight and waking up at 9 or 10. I guess its an improvement from a couple of weeks ago when I couldnt get to sleep for ages/at all 
I usually go to bed around 12:00 am, then wake up around 8 or 9 in the morning 
I go to bed at 10pm, then wake up at 1am, then 4am, then 5am. I think it has something to do with my lucid dreaming exploits.
Weekdays, I go to sleep at 22:00 and wake at 7:45.
Weekends I go to sleep at 2-5 AM and wake up at 10-12 AM.
On school days I usually get off the comp by 10pm(22:00, whatever =p), have insomnia till 2 or 3, then have to get up by 6 or 6:30am. On weekends I go to floor when I’m tired since I can finally sleep in. ^^
Now that I’m on school and my sleep schedule is no longer messed up 
roll:) I go sleep at 0:30 am and wake up at 5:45 am… I usually take naps when I’m unbearably tired, and that usually means during Chemistry or Physics classes…
I usually go to sleep at 10:00pm and wake up at 6:00am during weekdays, and in the weekend, there isn’t really a precise hour…I just go to bed when I feel tired and wake up late.
I usually go to sleep around 11.00 pm on normal days, and I wake up at 7.00 am or 50 minutes later, when I don’t have a first hour, which is at the moment Tuesday and Wednesday.
In the weekends it can be totally different. Depends on how tired I am and what I’m doing Yesterday I went to bed very early because I was very tired. And sometimes I’m going to bed at 4.00am. I stabd up when I don’t feel like laying in my bed anymore.
During weekdays, I usually wake up at 5:00 am. My sleep varies from 00:00 to never at all. During weekends however, I can concentrate better on sleeping since tehre’s no school so I sleep at anytime I want for 12 hours.