Is it bad to sleep at abnormal times?

[vexx]

definitely good to study before you sleep, REM sleep is mostly associated with memory consolidation, so sleep as much as you can after you study and you will remember it best.
having a nap won't do you much good after you study since that will hardly be any REM so not much good there.

[Readinya]

http://www.highexistence.com/alternate-sleep-cycles/

Apparently Leonardi Da Vinci followed the uberman cycle; he could get a heck of a lot more work done.

[Glockmeister]

http://www.highexistence.com/alternate-sleep-cycles/

Apparently Leonardi Da Vinci followed the uberman cycle; he could get a heck of a lot more work done.

Personally, I wouldn't rely on sources for the internet for scientific claims. There's a lot of crap out there.

so REM is basically when we sleep yes?

Lol whut? We sleep and enter NREM (non rapid eye movement) and we stay in that via 4 stages than switch to REM sleep. Overall we have 80% NREM sleep and 20% REM sleep.

Well, to be precise, it's actually 6 stages really, because once you reach NREM Stage 4, you go back to Stage 3, then Stage 2, and you skip Stage 1 to get into REM sleep.

The uberman sleep cycle has been known to be beneficial to the sleeper for about 5 months, and then they crash and sleep for 3 days.

Of course, getting INTO the uberman psychle is hard enough as it is.

Then you can do it all over again. Several stories all over the internet. Do not quote Psychological theory if you do not look at the research to accompany it...

Incidentally, I did attempt to make a search of the scientific literature for any mention of this uberman cycle (having never heard of it before). I looked up the phrase uberman sleep cycle and just simply the phrase uberman on PsychINFO, which the major database which indexes all the major psychological journals together, as well as MEDLINE, which is the major database for medical journals. Couldn't find an article at all about it. When I google the uberman cycle, it turns out that there is an alternative name - polyphasic sleep. But none of the 11 journals which popped up had anything to do with the uberman cycle as described on the those sites. Certainly no study has ever been conducted to the safety and efficacy on short sleeps throughout the day on any sort of performance or cognitive metric.

Another internet myth I say.

[Glockmeister]

http://www.kuro5hin.org/story/2002/4/15/103358/720

This is really cool if anyone's interested.

Interesting but please don't attempt it.

There's a reason NREM occurs 80% of the time and REM occurs 20%...obviously because NREM is more important.

Stick to normality please....PM me if you want NREM-deprivation effects.

actually its not fully known the functions of each part of sleep, but studies have shown REM to be more important which is why sleeping longer is better.. as most NREM occurs earlier, and REM occurs later (periods of REM increase over the night).. so we need more sleep not less for us to be most well rested mentally and physically (ie: more REM benefits)

Mentally and physically can't both be REM? :S

Physically = NREM
Mentally = REM

What is the point of being mentally awesome if you're so tired you can't walk? :S

I still think there has to be a reason why NREM occurs 80% of the time...but yes I was guessing

I'm not quite sure what you mean. The probable reason why there is more NREM could simply be because it just simply takes a long time for melatonin, the hormone responsible for sleep to actually be release in the blood in the amounts needed to induce REM. This is just my hypothesising though, and I'm not backing this up with any evidence.