Earlier quoted context omitted.
The article ends with: The answer - 20-minute naps are arguably too short for a restorative nap - 30 minutes a time would be better, but 90 minutes allows a full sleep cycle
Interestingly, newborn babies are on a 90 minute schedule. So are the parents... Though to be fair, that only lasts a few months until it's 2x90 min, 3x90 min, etc.
Is surviving on 20-minute naps bad for you?
21–30 of 50 posts
Re: Is surviving on 20-minute naps bad for you?
#22I did the "uberman" sleep schedule for a few months about 10 years ago. It works; you can definitely survive and stay surprisingly functional on a 20 minute nap every 4 hours. You do lose some cognitive ability, though. The advice in the OP is pretty bad, though. Any nap of more than 20 minutes will leave you feeling groggy when you wake up, especially if you're sleep deprived, which could be catastrophic for a pilot…
I did uberman for a month when I was first starting out and just doing freelance. I could set whatever schedule I wanted so, I decided to give it a shot. The big thing for me is, I really like the kind of concentration that the nigth brings, but I also like the early mornings. I've even been contemplating switching to a two-sleep cycle system again so I can enjoy both my mornings and nights. Back to the uberman: week…
Re: Is surviving on 20-minute naps bad for you?
#23I would work in the wee hours when everyone's asleep, sleep all day, but then get up for a few hours before 5pm to get errands done. With the limited daylight and business hours it made me focus and prioritize chores and other busy-work. Social life didn't take too bad of a hit because I got it all in the evening before working the rest of the night and early morning.
Re: Is surviving on 20-minute naps bad for you?
#24Earlier quoted context omitted.
I did uberman for a month when I was first starting out and just doing freelance. I could set whatever schedule I wanted so, I decided to give it a shot. The big thing for me is, I really like the kind of concentration that the nigth brings, but I also like the early mornings. I've even been contemplating switching to a two-sleep cycle system again so I can enjoy both my mornings and nights. Back to the uberman: week…
I wonder if some people are just somehow (genetically?) more predisposed to functioning well on the Uberman sleep schedule.
Some people probably deal with the deficits better than others, but all of the "positive" results from something that extreme I've heard of are subjective and self-reported, so not worth much as evidence. There is, however, lots of empirical data about loss of cognitive function due to sleep deprivation; to be fair I don't think any of the studies I've seen targeted precisely that (self imposed, cyclic) sort of pattern. On the other hand, none of that research suggests a good outcome would be expected. I'm not referring to all sleep patterns here, just those that rely on very short cycles, e.g. 20 min.
Re: Is surviving on 20-minute naps bad for you?
#25I did the "uberman" sleep schedule for a few months about 10 years ago. It works; you can definitely survive and stay surprisingly functional on a 20 minute nap every 4 hours. You do lose some cognitive ability, though. The advice in the OP is pretty bad, though. Any nap of more than 20 minutes will leave you feeling groggy when you wake up, especially if you're sleep deprived, which could be catastrophic for a pilot…
The reason uberman works is because you are getting REM sleep during those 20 minute naps. Your body adjusts to the 20 minute nap cycle and throws you into REM faster, hence why that first week or so adjust period is rather hellish. Before your body adjust there is a lack that much needed REM sleep. It is a really crappy article though
I'd be really interested to see it, all I have managed to find is evidence that some people who do it believe that it works well for them, which isn't at all the same thing.
Polyphasic sleep schedules are interesting, but I've always thought these extremely short cycles were problematic.
Re: Is surviving on 20-minute naps bad for you?
#26I hate when an article states a question making you expect an answer. This article ends with exactly the same question it starts out with.
Re: Is surviving on 20-minute naps bad for you?
#27Earlier quoted context omitted.
The reason uberman works is because you are getting REM sleep during those 20 minute naps. Your body adjusts to the 20 minute nap cycle and throws you into REM faster, hence why that first week or so adjust period is rather hellish. Before your body adjust there is a lack that much needed REM sleep. It is a really crappy article though
Do you have evidence (i.e. randomized, blinded) that uberman actually does work? I'd be really interested to see it, all I have managed to find is evidence that some people who do it believe that it works well for them, which isn't at all the same thing. Polyphasic sleep schedules are interesting, but I've always thought these extremely short cycles were problematic.
Re: Is surviving on 20-minute naps bad for you?
#28I did the "uberman" sleep schedule for a few months about 10 years ago. It works; you can definitely survive and stay surprisingly functional on a 20 minute nap every 4 hours. You do lose some cognitive ability, though. The advice in the OP is pretty bad, though. Any nap of more than 20 minutes will leave you feeling groggy when you wake up, especially if you're sleep deprived, which could be catastrophic for a pilot…
How old were you? It seems like if you're in your teens or twenties you can pretty much do any crazy sleep schedule and be fine with it as you're in the "superpowers" stage of your life. Its a little different in your 40s. As someone with sleep apnea, sleep quality is so important to me. I can't imagine messing with it, especially considering we don't fully understand sleep and if there may be long term consequences…
In my early twenties I could spend the whole night partying and drinking, then sleep half an hour and show up for work on time and still manage to do useful work.
Should I try these shenanigans now, I'll either be zombified and nauseated for the whole day or, if I try napping, collapse for the whole day, alarm clock or not. And that's without apnea.
My personal belief is that any schedule involving an alarm clock is wrong at best, and damaging at worst. The schedules may seem to 'work', but who knows what kind of damage they may be doing to the body.
Re: Is surviving on 20-minute naps bad for you?
#29Earlier quoted context omitted.
Do you have evidence (i.e. randomized, blinded) that uberman actually does work? I'd be really interested to see it, all I have managed to find is evidence that some people who do it believe that it works well for them, which isn't at all the same thing. Polyphasic sleep schedules are interesting, but I've always thought these extremely short cycles were problematic.
It's impossible to do double-blind experiments on behavior changes. But randomized, blind-evaluator experiments would be a good start.
Re: Is surviving on 20-minute naps bad for you?
#30I did the "uberman" sleep schedule for a few months about 10 years ago. It works; you can definitely survive and stay surprisingly functional on a 20 minute nap every 4 hours. You do lose some cognitive ability, though. The advice in the OP is pretty bad, though. Any nap of more than 20 minutes will leave you feeling groggy when you wake up, especially if you're sleep deprived, which could be catastrophic for a pilot…
That's not entire true. Getting a full sleep cycle is important - More over, the reason you don't feel groggy after sleeping for 20 minutes is because you didn't actually enter into the deeper levels of sleep, which are important for actually being rested. If you sleep for aprox. 90 minutes, a full sleep cycle, then you also won't feel groggy.