Pretty much instantly unless I wake up from a particularly vivid dream - then it might take a few seconds.
this post was submitted on 18 Nov 2025
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I usually get "stuck" in whatever horrid nightmare I was having before waking up. For the first 5-10 minutes I'm not sure if I'm still in a dream or not, then I spend a while panicking about how I couldn't figure out reality and if anything is real.
Although things are usually a lot better when my son decides to sleep with us. He'll wake me up before the sun just yelling the most nonsensical stuff and it snaps me back to reality pretty quick.
My favorite from this week was "wake up daddy put your jeans on! (Throws my jeans at my face) We're late for work!" At 5:30am. I work from home an don't have a set time to clock in but oh boy I clocked in early that day.
I’m able to get up quickly and stumble through my routine. I do the same thing every morning so I’m less likely to skip anything. I’m awake and fine after a few minutes and about 100% after a shower (twenty minutes or so). Sometimes in the shower I have to rethink my sleep because I’m likely to have super realistic dreams and I have to separate fiction and reality.
I typically wake up naturally nd go to bed not too late. So I can say I go from waking up to being awake in less than a minute. This sometimes causes me to have insomnia if it happens at 4AM because I become incredibly awake.
16 hours give or take.
It varies. If you have this all the time, I'd suspect your sleep duration is not aligned with your sleep cycles. I'll be more confused if I had dreamy sleep, I'll be more confused if I wake from REM or deep, and I'll be very confused if I awake from a dreamy sleep during REM or deep. I don't think I forget I'm human, but it can take a second to adjust to not having a dream reality. I'm definitely, often enough, entirely confused as to where I am for a moment.
However, this effect is lessened when I awake from light sleep. It feels more natural. There's a lingering sleepy feeling, but it somehow feels like I'm well rested, even if it's a short sleep. Sleep cycles are typically 90 minutes (light-rem-deep-rem-light). 6 hours isn't great, but waking is acceptable. 7.5 is good enough for me. 9 is too much commitment to test.
Ironically, when I drink until bedtime, I can sometimes wake instantly if the timing is right. However, it's like a low power mode. I'm alert, but lazy. Like I just blinked away my entire sleep. Alcohol tends to prevent REM and disrupt deep sleep.
For me, it's usually instantly. While I'm usually groggy for at least half an hour, for as long as I can remember, I've always been able to wake up and immediately start my daily tasks, play video games or have conversations with people. I'll even sometimes remember that there's something I need to do, like my laundry or that I forgot to take out the trash the night before.
30+ years and im still waiting for all systems to come online tbh. Any day now....
I have to sit there for a few minutes, actually been screamed at in my youth for it too. Weird times.
SLEEP INTERRUPTED UNEXPECTEDLY.
DUMP LOG?
Man wasn't there something .... Ah yeah forgot:
FLUSH LOG.
In terms of cognizance, a few seconds.
More broadly, in terms of achieving activation energy for the day and so on:
- With wake up stims? ~15-30m.
- Without wake up stims? Anywhere from 30m-3h, depending on a lot of contextual variables.
Instantly? I don't even feel groggy when I wake up. Don't drink caffeine either, well not after waking up. Sometimes if I have to stay up longer than I should.
When I wake up, I know who I am and where I and there's no disorientation; but I cannot get myself out of bed for half an hour. I feel like I've been given tranquilizer medication. Need to keep hitting snooze on the alarm. I resent this because I could have slept an extra half hour if I could only wake up and go.... But I must go through this snoozing drama every morning. No matter how much sleep I get, my brain cannot be functional enough to get out of bed for that first half hour. After that I'm good to go and firing on all thrusters.
This isn't something I think about/worked on, sorry. Not remotely consistent either with when I sleep, personal life and shift work.
Earplugs every time I sleep. Sleep mask when the sun will be out.
What happens if you don’t have an alarm?
I wake up naturally, but still doped up. Almost always exactly half an hour, then it feels like the light comes on.
Find an app for your phone/watch that wakes you up at the end of your sleep cycles. When you're in deep sleep you tend to be pretty still, but when you're at the end of a sleep cycle is when you typically move around a night. There's apps that will wake you up when it's almost your alarm time, but you're moving around.
Also try to maintain a consistent sleep schedule. Eventually you can kinda figure out your own sleep cycles and try to work with them instead of against them.
Jealous
We all have strengths and weaknesses. I'd trade this ability for a more important one I severely lack in.
Don’t drink caffeine either, well not after waking up.
Are you saying you sleepwalk, and drink coffee while sleeping? Because, that's kind of impressive.
I a word?
Immediately
Until afternoon or evening.
Coffee and not even a monster java in the morning is enough. I really do take that long to warm up. This is why I work night shifts.
Within the first 30-45 mins of waking up. Getting up and starting my daily routine is a big part of feeling like I’m awake.
It varies like crazy for me.
I'm an insomniac, and some nights after being up for a while, I'll fall asleep again within an hour of the alarm. Those days, I struggle to focus enough to sit up, and force myself to move in a minute or two.
Other times my eyes will flick open and I'll be in full awake mode almost instantly. Some of that was trained behavious from when I was on-call.
It really depends on the quality and amount of sleep I’ve gotten. Lately it’s been pretty bad, so it takes me a bit to ‘wake up’ so to speak.
We have a hibernation mode?
How do I use this I never got the instruction manual
Sleep mode / Hibernation mode, same difference.
I mean I guess Sleep mode is the "normal" thing, Hibernation is... I guess... more like Coma or when undergoing Anesthesia...
Unless im sleep deprived or intoxicated, pretty instantly. But although I sleep pretty well, I generally wake up regularly through the night to turn over, flip my pillow etc. So, waking isn't usually a shock. Maybe if I got woken by an alarm I'd be confused, but generally I wake up a few minutes before my alarm.
For those specific questions usually like 1 second.
Sometimes it takes me about 30 seconds before I realise where I am if I'm in a new place, otherwise instant.
Depends. Startle response is pretty beast.
In general pretty quick. Anywhere from instant to about 1 hour.
On most days it isn't really going until 9 a.m. no matter what time I haul my ass out of bed. On vacation that is when I wake up if allowed to sleep in.
The one thing I look forward to from a possible retirement is sleeping on my natural sleep cycle.
Your brain is supposed to leave sleep mode?
How would you measure the time it takes to wake up without somehow monitoring brain activity externally? I mean, you start sleeping, so at best a dodgy perception of time, and at some point in time you're awake. For me it would be impossible to tell the time it takes, might be a second, might be an hour.
You're describing something I would hope wouldn't be the norm. If that's happening to you I'd urge you to see a brain doctor. Not a shrink, an MD doctor.
If you are not familiar with the concept of sleep and/or waking up you may want to do the same.
In your case the doctor clearly wouldn't have anything to work with.
How long does it take from what? We don't hibernate or reboot, what do you mean?
They’re talking about sleep.