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What time do you go to bed? What time do you usually get up? How much time do you have for sleeping?
I heard that some people (like Elon Musk) sleep for 4 hours in order to have more time to do things during the day. Is it dangerous to health?

Of course, it’s dangerous. The body and brain must at least sometimes rest. Constant lack of sleep will slow down your brain more and more, and as a result, these supposedly saved hours will not help you in any way, because your productivity will be much lower than the prescribed level.

I myself try to sleep at least 7 hours a day.

Probably dangerous to the health of most people? And only few people are immune to the danger? I have seen the sleep research in the past, I think I believed it and it worked for me(I guess). But thesedays I don't even take the sleeping thing into account like before but I feel fine. Maybe because I rest or take a nap once in a while during the day

In fact  it's very harmful to health because if we don't get enough sleep the body is broken and doesn't want to try to any work  Unlike Elon Musk  I usually sleep for 8 hours which I feel is extremely good for my health Sleep 2 hours each day and 6 hours in the dark. I really like to awaken very early within the morning and compute within the morning is refreshing.

It is very deadly not having adequate sleep. I used to have less than 7 hrs sleep a day and i know how iy affected my health and landed me  to the hospital,  since then i learnt my lesson  and started giving my self adequate sleep

I would say that sleep whenever you body feels to sleep and wake up whenever you want to. There's never a fixed schedule. School fucks us up and mentally makes us believe that sleeping this much hours or less is bad or sleeping this much hours or more is good. Sleep whenever you feel like and that's the way to do. That's only natural.

I understand that there are many people who sleep little, but I sleep 10 hours every day and feel great! Although I noticed that if you go to bed at 10-11 pm, you can sleep 7-8 hours and you also get enough sleep

Our body and nervous system need you to sleep well so they can recovery and get active again so you need to sleep for 6 hrs at least evey day to keep your body safe

Optimal sleeping time is 7-8 hours. It is a safe option for the body.

i have no specific time to  sleep but at least before midnight or over an hour.and about how much time?i make sure to have 5-7 hours and also having a 30 mins Nap after lunch that is my daily routine .

also i make sure that if i did not make a 5 hours sleep a day,those time will be added in my sleep the next day or even in weekends.

A man needs 6 hours of sleep to maintain normal fitness It has a good body and works well  However I sleep more than 6 hours and sleep is again harmful to health Many become obese. We have to work out a routine so how much you sleep each day will be a rule.

I personally sometimes never sleep because every night I spend time watching movies or playing games and in the daytime I spend time for working. actually it's dangerous if never sleep, I sleep every at 12 o'clock night and sometimes I never sleep. the effect is that the body often shivers and becomes thinner if rarely sleep.

In couple of months I have developed a habit for myself I go to bed before 11pm on night so that I can wake up before 6 am in morning, this really helped me lot with managing my schedule between work and lifestyle.

You are right that an average person should sleep for 8 hours but should sleep at least 6 hours if not more than 8 hours, but again the problem is less but the problem is very harmful to our health. But sleeping 10 hours according to your routine does a lot of harm to you.

Before I go to bed I make sure first that my kids are already sleeping, I still have a baby and a toddler so its hard for me to have a specific time on when to sleep.

As much as possible I sleep for 8 hours because our body needs it and thats the advice of my doctor. I wake up at dawn to prepare for my eldest food for school so its a multi tasking for me as a mom.

It's been a nice topic to discuss and as per this thread if anyone sleeps only for 4 hours continuously for several days will definitely face serious health issues at first we can't function properly or do our best we feel disturbed this will impact our efficiency first. Of course other issues like increased stress etc

At least 6 hours of sleep is must if not 8 which would be a perfect maintaining proper time for it is tough in these modern days but it would be good if it is from 10 to 6 as most of them suggest. I would sleep from 11.30 to 5 or 6 depends

Most of the time I go to bed at two o'clock at night & ten o'clock in the morning, I get up. During this time, I woke up at five in the morning to pray. So I get about seven hours of sleep time. I think, if a person want to maintain good health, he must sleep at least six hours a day.

I've heard too that sleeping less than 7 hours is unhealthy but this applies to those that are on the line of aging.

Most of the entrepreneurs and businessmen sleep less than normal because they are the busiest person in their company. As much as possible, I'm trying to keep myself early as well to prepare things that I have to do within the day.

Rather spend 7-8 hours in sleeping. Proper time of sleeping helps us to think positively. I imagine those people who sleeps for just 4 hours. It's life draining.

Sometimes it's become habit my friend, my parents only take 4-5 hours of sleep in night and they look more fresh and energetic than me.  I take 7-8 hours of sleep and they always scold me for that saying we are wasting your 3-4 hours daily.

You are right that we usually hear about this at home but I think a healthy strong person needs at least 6 hours of sleep. It helps the body to grow healthy and immune.

That will depend on personal. I have seen some of my family members just slept in less than 7 hours, and they have very busy every day. They still healthy, and they don't have any complaints with their body. I think if we are can manage our sleep to get quality and not quantity, we can feel fit and healthy, and we can also take care of our bodies. But many people will time that sleeping more than 8 hours will be better than sleep less than 7 hours because they don't think about the quality of sleep time.

Of late have been finding very difficult to sleep as often as I should. Go to by 12pm and wake up 5am, my new job isn't helping also. Thinking of resigning and looking for another job as it is really affecting my health

Previously, I always went to bed early (at 10-11 pm). But lately I go to bed at 2-4 am

The maximum hours I spend on sleeping is 6hours, I sleep most times at 1 am and wake up 7 am, its too bad I know but this is the actual time I can use my energy to do stuffs that I am doing presently, hopefully in the nearest future I can start sleeping for 10 hours minimum, its good for a healthy living anyways.

Whenever my sleep comes, I go to bed or sleep where I am  ;D ;D

and also the difference of sleeping in the morning or at night,i believe that the sleep in morning is half different from the night sleep.

like those who are working at night shift they need more sleeping time than those who works in the morning.
well thats good for you because sometimes when we are sleepy and stands going to bed our body and mind going back to normal and sleep leaves us.

I used to go late to bed but I recently started a new job that I have to start working on 5am.
Having said that, I usually go to bed around 10 pm. this is around 6-7 hours sleep for me - personally I think that 4 hours is so less, even 7 hours is not enough but it depends on the person.

You are lucky! I can’t fall asleep if the room is light and noisy.

11 pm, and i need to wake up on 5 am, what a miserable life

Terrible for me. i don't have any specific time to go to bed. i am up till 12:am Most days but not allways. i do go to bed latest 1:am because i have little or Nothing doing. quite terrible for me. i with i can get a Job.

Usually between 10pm - 12am, unless there's something that I'm deliberately staying up for.

Usually, I sleep between 1am and 8am. This is not always enough for full vigor, but I have to do it.

I don't really have any specific time to sleep, once the law of nature calls, I doze off. And the good thing about me is that no matter how bothered I am, it doesn’t stop my sleep at all

Or maybe the effect wouldn't show now because you might still be young? all those bad stuffs we do with our body commonly shows when we start aging... like literally.

I go to bed late (at about 3-4 nights), but I hope that someday I will be able to start a healthier lifestyle and go to bed at 11.

Nobody can sleep for 4 hours per night, according to various sources like Sleepingmola (https://sleepingmola.com/) that's not enough for your brain to rest.
Better find a new job because such conditions could harm you. Personally, I think that's individual I mean sleeping for 7-10 hours. You should ask your parents how much do they sleep and try, well, in the same hours.

The sweet spot is usually 7 hours; sometimes your body will "wake" you up even if you don't set any alarm :)

I take about 20mg of sublingual Melatonin. This helps me sleep for 6 hours straight. If I wake up before 6 hrs, I take another 10mg, and I can usually get 4 more hours.

8)

maybe he is Sleepy Head lol  ;D because for me Sleeping place is the most special part of my House so it means i need to be very comfortable in Bed before a fall asleep.
not unless i am so very tired or drunk(when time that i am still hard drinker but now i stop drinking)and also with my wife beside me because i felt so relieved with her along my side.

There is no fixed time once I sleep sometimes I sleep early and sometimes I sleep in. However most of the time it's 1 or 2 o'clock but within the morning it's too late to urge up so there's tons of talk reception.

7 hours is so little for my body.
If I am tired and I sleep only for 7 hours then it will be very hard to operate during the next day. My body usually requires 8-10 hours of sleep in order to be fully functional.

11:30PM everyday go to bed...

I think we need  about 5-6 hours sleep. Because our body need rest and it need to recover.According to the doctors they said  human need to get 6 hours of sleep in daily life.

I need all 10 hours to have energy. Coming to bad 10pm

Most important time to time sleep for our health, although i like to sleep 10-12 hours fully in one day. Actually before i was sick more time then doctors give me some advice, i need leave work and take some rest.

I go to bed at around 10:00 pm

Nowadays since we are under quarantine?my sleeping time changes because of our daily habit change as well.

now we are still awake even early in the morning so we sleep sometimes 3am or later.

but on normal days?when the Corona is not here?i sleep at least the latest is 11pm.

I work shifts hours, so it depends. Sometimes I'm pulling an overnighter (from night to morning) and therefore I sleep during the day. Other times I'm on an average regular schedule 9-5

Shifts cannot let you enjoy a stable sleep schedule.
If you are able to change swifts by week and not by day then this stabilizes for a while your sleeping activity. Otherwise, you are losing energy and being somehow unproductive if you don't sleep well.

I worked some bounty in this forum after finish my work then i go to the bed. Although i watching some movie with song then sleep. Actually i never sleep in day time because always i have many work in my real life.

A healthy strong person needs 6 hours of sleep daily I usually sleep for 7 to 8 hours. As you have rightly suggested 6 hours of daily sleep is beneficial for doctors. But at night I sleep at about 12 o'clock But I wake up very late in the morning

There is no fix hours to sleep. Everyday I go to sleep at 12 mid-night. But I wish I could work whole hours at night. My body has a limitation. Everyone accept that. Internet has no day or night. Most of the jobs and micro tasks are found mainly during the window of 6 pm to 12 am as I experienced. This is because mostly Asian and African people are engaged in micro earning sites. Western people in USA and Europe are likely active at GMT +6 to GMT +00 but less traffic on their time.

4 hours is way way down the recommended hours by a doctor which must be at the 7-8hr range daily. Im a busy guy and during weekends I find time to really rest because during weekdays, it's always chaos. ;D

If we don't get enough sleep our body becomes worse. But due to the busyness of the night i'm going to sleep many nights When the workload is low I attempt to nod off at 10 but most of the time i'm 1pm.

Honestly I really don't know my time of sleeping. I only sleep when I'm actually sleepy I always get myself bz on games, streaming movies/videos and the most of it here on bitcointalk.


I'm always lack of sleep maybe because its my daily routine. 4 to 5 hrs of sleep is enough for me.

I'm pretty sure that 8 hours of sleep is still the norm. But of course depending on your number of jobs and working hours will affect your sleeping hours. Personally, I take a a lot of Vitamins C and, making sure that I stay healthy.

I usually go to bed at 1am. I know people said that Sleep 8hr is the highest recommendation but honestly I don't know Who do that haha I sleep 10hr or more. Especially now that must if works are stopped

Most time I go to bed around 2am and wake up around 5am,most of us want to sleep early but we couldn't because we have to stay awake and hustle.

There is a Big changes in my sleeping habit now,since the quarantine take effect i mostly go to Bed mostly morning time either 2-5am depend on the movie or games that we are having with my siblings.
there is no need to woke up in the morning since no office requiring me to,and also my work at home need to time to report.
what?3 hours of sleep?that's not normal mate how can you manage to do that?

About midnight, I wake up in 6:30 in morning.

I go to bed recently at 11 pm (sometimes later)

this information is wrong...
from what I hear, Elon musk doesn't sleep only 4 hours in 24 hours but he sleeps erratically, and every 4 hours he wakes up from sleep, this usually happens to geniuses whose brains are very active.

Well i usually go to bed very late especially nowadays due to lockdowns everywhere there is no real need to wake up early because no work and no office, i like to stay up late and utilize my time to learn new things about crypto online at this forum and youtube etc.

I try to sleep at least 7.5 hours since research has proved a number of times that most people actually need 5 sleeping cycles 90 minutes each!

That said, I think the most important parts is actually going to bed and waking up at the same time, it surely changed my sleep quality for the better ;)

I sleep early and wake up early, as I try to get 7-8 hours of sleep a night. If I sleep fewer hours, I usually end up getting sick, so I really need my sleep.

Of course it's dangerous, the body needs to rest to function properly
I read somewhere that, the body needs approximately 8 hours of sleep

personally i can never fall asleep before midnight, i always watch tv until that time and my alarm rings at 6 am

I usually sleep less at 23:00 WIB, and I usually wake up at 6:00 WIB. I sleep about 8 hours per day. and for health it is not suitable for health, in my opinion, because lack of sleep can be more to do activities, such as doing work or other activities

I sleep at 3-4 in the morning because I am a full time in the cryptoqurrency industry, and get up around 12 noon and start working at this forum every day.

I believe in early to bed, early to rise. So I am going to bed at 9pm, and rises at 5am in the morning for offering morning prayers

For some time I had to live in this mode. Those were the worst days that I have lived. Minimum performance, terrible health.

Now during the corona pandemic I find myself going much later to bed, usually around 1 am. Which is kind of late for me, but since I am doing home office, I just wake up at 9am - the lastest possible for me.

I go to bed at 02.00 AM

I usually go to bed at 1 or 2 am. I sleep for 7-8 hours. I believe that the best sleep length is between 6 and 8 hours. Sleeping less or more makes me feel really uncomfortable in the day. Because I become very sleepy and have difficulty on focusing on my daily activities.

My daily routine. Bed at 1 a.m. At wake up at 8 a.m.

I can't go to bed early, never before midnight and i always get up at dawn to go to work i sleep about 5 or 6 hours a night, for now it seems enough but in the future i will try to reach an average of 7

I don't always go to bed early, the kids normally go to bed my 9pm and then it's jut me and hubby, we always cherish those little time and hence that always makes me go to bed a bit late

What time do you go to bed?


I fall asleep before I have a chance to check the clock.


8)

I go to bed 6am and wake up 9am sleep again 1pm to 4pm and go all the way to 6am again.. then sometimes takes full time sleep 12 hours straight.  :D (https://twitter.com/i/events/1345736045225103360) :D (https://www.henyostreamtv.com/keqing/im-not-the-overlord/)

I don't have any specific time for my sleep,
I take care of my baby so I would sleep whenever I could.
Even before we have a baby that is how I live I would sleep when I feel sleepy no matter what time it is.

I usually go to bed at 11pm local time where I live. I don't sleep too late because it's very unhealthy. I wake up at 6 am, I have about 7 o'clock to sleep.

For a long time I have been trying to sleep shorter but somehow it does not work. Usually I go to bed at 23-24 and get up around 9 so I sleep too long but I can't handle it. I wonder how I can sleep shorter.

No specific time before I take rest for the day. Depends upon how quickly my work is done, if feeling bored will watch something or read something and if that gets interesting then will sleep later. So, at times I sleep early if tired or just nothing to do at times and at times its very early morning end up sleeping.

I must be Sleeping before 11 in the evening ,No matter how many things need to Finish ,i will continue in the morning because that's How important Sleeping for me.

This is really good and ideal you can go on bet at 11 but sadly in last one decade I am fail to do this because mostly I have to sleep at 4 AM or 5 AM just because of this I am facing some serious problems which need to fix but its not going to good for me for very long time.

 I usually sleep around 10pm but most time I try to sleep earliest but I find it difficult even though if I try. Sleeping early is very helpful to the overall health.

I am a very late night guy. My work doesn't allow me to go to bed early.. I work till 3 or 4 at night. so usually I sleep after that. It is very rare for me to sleep early..


https://twitter.com/wjccanadarussia
https://twitter.com/wjc_usavfinland

I usually go to bed at 11 pm. Sometimes I like to stay up late if there is an unfinished project.

Maybe telling us why can help you out in some point.

There are reason for us not having sleep till this late ,but at least those are valid and not just lurking around until that time.

Sleeping for 4 hours is definitely dangerous. Whenever i sleep that little i feel like whole day is wasted, I can't focus and be productive as much as when I'm rested well. For me the norm should be at least 7 hours of sleep.

It really depends from the day. My work time is dynamical and there are days that I'm going to bed in 22:00, there are days that I'm going to bed in 03:00 and i try to sleep more than 6/7 hours.
For Elon he is genius and he can do whatever he wants :D but i don't think 4 hours are enough ! 

I guess that depends on how much rest/sleep your body needs. If my body feels well rested and energetic at night, I usually do not bother myself with too much sleep. Besides, that is good time for me to do certain works without too much distractions

I mostly sleep with that long and sometimes even lesser. But us being adults, we're having that experience because of responsibilities and things that we have to do.

I also feel like that, tired and easily angered when lack of sleep. That's why if you can take as much sleep as you can with the right time, do yourself a favor by doing it.

I go to bed around midnight and get up at exactly 7 in the morning. If I need to get up at 6 am, then I try to go to bed at 11 pm. Truth at 23 does not always work out.

how sweet , I missed the time when My daughter wanted the same thing when she was a little girl.

But now that she's grown up , we only have some small talks before sleeping.

Of course we need to sleep lol , even what time it is.

The perfect sort of timing I would say as early to bed and early to rise just the great thing to do if one can mange to do it. Also, I hope you do get time for some exercise as in evening its nice you go out for a stroll with your dog so this helps you. Ensure some or other activity you do daily just rather than making your life monotonous.

I don’t sleep regularly every day, and I don’t know why I can’t fall asleep every time I want to go to bed earlier, I can’t fall asleep at night, and I can’t get up in the morning.

I usually go to bed at ten o’clock, but I usually don’t go to bed until about twelve o’clock. Sleep time is about seven or eight hours. I get up at about eight o’clock in the morning. I think everyone’s acceptable sleep time is different. The time period you feel comfortable is fine.

I sleep seven hours a day. If it is less than seven hours, I cannot get up the next day, so I drink a glass of milk and go to bed every night.

I usually go to bed at about 10 o'clock and I should be able to fall asleep within half an hour. Because I am tired after working all day, I fall asleep very quickly. Early to bed and early to wake up will also be of great help to my working condition the n ;Dext day.

well, it depends. when I study before sleep, I go to bed early coz books make me feel sleepy and sometimes I really enjoy it in that I have sleep trouble. but when I needn't to read at night, I play online games then stay up late.I know it does harm to my health but I just couldn't help it >:(

usually go to bed around ten o'clock. I am more accustomed to going to bed early and getting up early. In this way, I will have enough sleep time, so that I can have enough energy to carry on the next day's work and life. I usually go to bed and lie down for a while and then quickly go to sleep.

I don't have a specific time to go to bed, it all depends on how I spend my day

Most people should sleep for about seven or eight hours. Some people are born with little sleep time, but their mental state is still very good. We don’t have to be like them, just master our own biological clock. I usually go to bed around eleven o’clock. Then I get up at 7 o'clock in the morning and can sleep for about seven or eight hours, which is just right for me.

There's no specific bed time for me but usually I do sleep late because I feel like I can do more things at night than daytime. But I try to sleep atleast 6 or 7 hours a day so that my brain and muscles can rest too.

if you already feel sleepy, sleep, it's that simple

We have the same thought about being productive but my body clock has changed all of the sudden.

Before, I can sleep only with lesser hours but this time it's changed a lot and became a little longer.

Usually, it has to be 7-8 even for adults but maybe because of many things that we think or overthink, it affects our health and sleeping time.

You need to decide if health is more important to you or wealth. If you do not sleep well, it can impact your health. What's the benefit of the money if your health is not good ?

Also I don't think that Elon musk sleeps only 4 hours a day. He has a lot of people who are doing the work for him.

Here, I found that quote for you so that there are no more doubts.  ;)

Elon Musk: "I sleep 'about 6 hours' a night – 'I tried less, but total productivity decreases'"
https://www.cnbc.com/2021/02/12/elon-musk-ceo-of-tesla-spacex-on-getting-six-hours-of-sleep.html

I am also somewhere in that range. 6-7 hours of sleep a day is more than enough for me.

I usually go to bed at 12. And get up from sleep at 7 am.Near about 7 hours for sleep. I read somewhere that a matured man have to sleep 8 hours properly to be well and healthy. If Elon Musk spent only 4 hours for sleep its definitely harmful for health. If you work hard you have to sleep perfectly.

I went to bed very early. I go to bed at around nine o'clock every day, because I think it’s good for me to go to bed early and get up early. Before going to bed, I go back to wash, and then lie in bed and play with my phone to relax. When I feel sleepy, I will listen to a song for a while, so that I can quickly go to sleep.

Sleeping is not fixed every day, and it will be late every time.

it counts on whether I can resist the seduction of milk tea. when I drink it, I go to bed late at around 24:00 coz I don't feel sleepy. otherwise, 22:30 is my bed time.  :) I have a weak mind, four days in a week, I drink milk tea...

23
I sleep regularly to keep myself energetic. I have 5 roommates who love staying up late watching TV thus I sleep at 23. without them, I could ge to bed at 22:00. I feel really sleepy when it's dark without daylight.
I think it's a good habit

There is no exact timetable of my dream. But usually I go to sleep between 23:00 and 00:00.

Personally, I always go to bed around midnight. I try no later than 00 hours. I usually get up at 7.00 at the alarm clock. On weekends I can sleep until 9 o'clock in the morning. If I sleep less than 7 hours, then I walk like a sick person all day. So 4 hours of sleep is not for me.

lack of sleep is bad for both of your body and mind. try to get at least 7 hours of sleep every day. i myself always sleep at 10pm and wake up at 6am.

Getting mature will make us Less sleeper , because of so much things to think and done, 4 hours sometimes is Long enough for the night and just take a Nap in the afternoon at least 1 more hr.

The best thing is that early to bed and early to rise should be the timetable. Like half an hour here and thee is fine but something like sleeping at early morning and then waking by next day afternoon is something which should be avoided unless your work is schedule during those hours or only in case of emergency. Morning vibes and freshness is something different which i have found once started getting up early in the day rather than late.

I usually go to bed around twelve o'clock, because my sleeping habits have been developed. If I go to bed early unless I am very tired, I may not fall asleep.

I heard healthy adults need between 7 and 9 hours of sleep so sleeping 4 hrs or less than to it may affect your health negatively. I think, you should sleep when your body feels tired and in order for you to do many tasks during the day maybe you could list them down and manage your time accordingly.

I usually sleep around 10 to 11 in the evening and work up around 5 in the morning.It is to ensure my body get enough rest as it is needed so that I can go about my daily chores with enough energy.Sleeping helps both our body and mind to relax and is highly needed for our health.

I once consulted with a doctor that the ideal sleep time is indeed 7-9 hours per day. Because there are so many benefits that we can feel
if we can get quality sleep. Such as reducing stress, supporting growth for children and maintaining an ideal body weight. But because of
today's demands of work, many people have bedtime very little. I even only have 2-4 hours of sleep a day, I admit I have to change my lifestyle.

depend on what time my daily Job/obligation was done .

it sometimes 9pm? 11pm? sometimes up to 3am if there are something need to rush.

But i make sure of having a 5-6 hours sleeping time because that is needed for my Health and Mind settings.

Usually I go to bed around 22:00 - 23:30, when there is no work.
In my opinion, by sleeping 4 hours a day there is no problem, as long as you can manage your stress level properly and exercise diligently every day.

4 hours is way to short for me. Sleeping around 7 hours is optimal, if I sleep too short or too long I am going to feel it all day and won't be as productive. Recently I started to go bed 1 hour earlier and wake up earlier too so I can do important things in the morning.

Defend on your age mate, because when you get Older even if you wanted to sleep more yet you can't because your mind is awake and you may not get sleep from that 4 hrs time after.

Thats our Body clock mate , the time we got sleep and the time we woke up.


Like me , I mostly sleeps at 11pm and wake up at 5am .

I’ve been going to bed a lot later lately, I dunno why but I get playing games & browsing online & before I know it, it’s 1am. I really need to start putting devices down & sleeping earlier.

mostly i go to the bed early,but i can't sleep early than i need, mush be play selfphone first before i can really sleep well.
i thinks  many peoples to the same..just go to thr bed and do something before sleep :)

Well, it depends. Sometimes I tend to stay up very late until 2 am. But mostly, I go to bed on or before 12 midnight.

About an hour after I get my daughter to sleep. Which varies wildly. I like to do stuff like play video games or watch tv that isn’t animated for a little bit before crashing. As a result I’m always tired and operate at about 40% at all times lol.

12am hard to stay asleep though. I wake up like 3 times everynight. Not sure why though.

I don’t have a specific time but usually around 11-12

I'm always in bed, but when I sleep is very different. Sometimes it'll be 7 pm, others 8 or 9 pm... Other times I'll sleep at 1-4 am or I don't sleep.

Somewhere between 10:30 PM and midnight.

I go to bed at 10:30 when I fall asleep is a different story

12am hard to stay asleep though. I wake up like 3 times everynight. Not sure why though.

Enough time for sleeping , at least 6 hours before 6am is best and exact sleeping time for working people like us.
Maybe you have internal sickness or maybe you are lacking of exercise, or you are eating heavy even before going to bed.

Unfortunately, I can't say that my sleep cycle is stable. Yesterday, for example, I went to bed at 2 a.m. and woke up at 7 a.m. On weekends I go to bed at 3 a.m. and get up at 12 a.m.  I hope that soon I will be a little richer and be able to afford a better quality sleep

Yes, this is very dangerous for your health. The body and brain must at least get about 7 hours of sleep on a regular basis, if not this can eventually lead to health consequences that affect your entire body. Constant lack of sleep will slow down your brain,  these supposedly saved hours so they can work longer in the day will not help you in any way, because your productivity will be much lower than the usual way of working.

I try to sleep at least 7 hours a day or else I'll get sleep deprivation and reduce my quality of sleep.

I'm always in bed, but when I sleep is very different. Sometimes it'll be 7 pm, others 8 or 9 pm... Other times I'll sleep at 1-4 am or I don't sleep.

Usually, I go to bed at 11 p.m