You are not alone. I often don't go to sleep until 1 or 2 in the morning because it's so hard for me to go to sleep with my laptop on my bed with me.

I used to be able to stay up until 4 in the morning, but now I just can’t seem to stay awake past 9 PM

1:00 - 9:00

Typically I don't go to bed until midnight or later, provided I don't have to get up early. I actually prefer getting up earlier in the morning on any day rather than later, but I don't seem to do that very often. Not too long ago I tried a plan to wake up super early in the morning (around 5:30-6 a.m.) to get more things done around the house. It worked for a while, but this internship I've been doing throughout the summer kinda ruined that schedule. Not necessarily complaining about that though, I just don't like waking up at like noon or so, just cause I feel half the day is gone by then.

For me it depends. I usually try to be a good boy and go to sleep around 8:30-9:00, sometimes even earlier if I have to get up super early the next day, but often, I don’t get to bed until later, and sometimes WAY later.

Exactly how much later depends on many factors, such as how tired I am, how long I stay online (GOF keeps me up some nights too, including on the Discord server ), if I have a ton of homework, social events, etc.

Sometimes I’m out for the count by 8:00, other times I’m up until 3:30AM, but usually, I’m in bed somewhere between 9:00 and 11:00.

5-6am. I have lifetime insomnia

Dear lord, reading this sentence actually made me feel legitimately sad. I am so, so, sorry for you...

Before my job change, I went to bed at around midnight.

Now, with the fact I have a job that starts at 4 AM, I go to bed at 8 PM; 9 PM on my off days.  I even strangely adjusted to it with little trouble.

I would best describe my sleeping schedule as having slowly gotten worse and worse over the past decade.

Back when I started college in 2010, I had for many years previously always been obsessed with being in bed by no later than midnight. (There was one incident in my first year when noisy neighbors got especially disruptive and I complained about getting only four hours of sleep that night.) But once I began my second (and final) year of college, the increased work essentially made it impossible for me to do that anymore, and it suddenly became common for me to get less than four hours of sleep on the weekdays.

After graduation in 2012, I was pretty much unable to go back to my old habit of being in bed by midnight, and as I took on new hobbies in the years since then, it has just gotten worse. In 2013, I often considered 2:00am to be the absolute latest I wanted to be in bed by; in 2014, that became 3:00am; in 2015, that became 4:00am; in 2016, that became 5:00am; in 2017, that became 5:30am. This year, it's been a lot more scattered, sometimes I was able to go to bed as early at 4:00am, and other times as late as 6:30am. As for when I wake up, I have my alarm set for 9:00am or 11:00am (depending on what I want to get done that day), though I frequently just shut it off and end up falling right back to sleep for another hour or two.

Needless to say, I've long since reached a point where I just feel miserable about how late I've been staying up every single day. For the last couple of years, my goal has been to consistently go to bed early enough that it's still completely dark outside (in the summer months, that can be as early as 3:30am), and that's still my goal, though the fact that I've been working on that for so long already shows just how much I've been struggling. In fact, I had really been hoping that this would be the year that I could finally break that worsening pattern (among other things, I want to play my Lego video games only during daylight hours, so an earlier bedtime would mean I could make more progress on them each day), but so far even my best self-imposed reasons for going to bed earlier just haven't been very effective over the long term. I just don't know what else I could possibly try at this point...

On average around midnight is when I start to retreat into my bed for much a needed slumber.
On very rare occasions is when I'd sleep at 10:30 PM or earlier. That's when I'd feel extremely ill or just completely drained for the day. Less common I'd sleep at 11:00 PM, and more often I'd sleep at 11:30 PM or later.

Usually midnight to 1 am for me