The forgotten medieval habit of 'two sleeps'

174 points by Peepers54 11 hours ago on reddit | 21 comments

221gp | 11 hours ago

I have been talking about it for years and have been like this since I was a kid. I have always been awake from ~2-4AM, and because of this I simply go to bed really early so that I still get 8 hours in. Sleeping pills will knock me out all night, but naturally, my body has always defaulted to having roughly 3 hours of awake time every night in the middle of the night for as long as I can remember. I don't feel tired, I feel perfectly awake, sometimes I get up and do things, sometimes not, then I get sleepy again close to 4am and go back to bed. I did some research on the subject a few years ago after finally talking to a doctor about it and I learned about biphasic sleep after that.

getgetgetgetgetovrit | 11 hours ago

My doctor told me I have this sleeping pattern too and actually said to me “you’re not the issue, capitalism is the issue” lol. I love my dr

limbobitch1999 | 9 hours ago

my ideal wake window from as long as i can remember is 11a-1-2a. since infancy. i was homeschooled for the first half of childhood so it didn’t really affect me. but man oh man. it’s been hell since about 9th grade. very hard as an adult.

not everyone has the same circadian rhythm.

CandyKnockout | 8 hours ago

Hey, me too, for a lot of this! 😂 I also have a delayed sleep schedule and was homeschooled until 9th grade. I was experiencing intense anxiety upon starting kindergarten and eventually counselors suggested homeschool. My sleep schedule was never considered as the issue, though looking back now, I believe it was a major factor. I had been a night owl already, I remember my mom struggling to get me to sleep, even as a toddler. The anxiety I experienced when I started school was always worst in the morning and better by the afternoon, but the bouts were so bad that I was nauseated, would vomit, panic and cry hysterically. I was still exhausted as a teenager, but I wanted to participate in activities with friends and chose to go to public high school. The nausea was still present, so I just didn’t eat until later in the day and I dealt with the tiredness. It’s the same as an adult and I’ve tried my best to design my life around my preferred sleeping window. (It’s a good thing I didn’t want kids!) People are still really unaware of circadian disorders though.

limbobitch1999 | 8 hours ago

basically my life except zero anxiety about school; my dad wanted to move a lot for his job and also probably didn’t really want my mom getting settled. the nausea in the mornings is always my issue. it feels unsettling and i just feel wrong. everyone thinks im lazy and a cry baby, but they would be too if i insisted they live on my schedule.

nightmareinsouffle | 8 hours ago

I like him too.

AngelSucked | 10 hours ago

Same for me

seiryuu-abi | 11 hours ago

I have a history professor in college who was obsessed with teaching us about this, that historically we didn’t have one sleeping period.

JoePNW2 | 11 hours ago

There is a good "dystopian future" novel set in England ~800 years from now that uses this as a plot point.

https://www.theguardian.com/books/2019/sep/09/the-second-sleep-robert-harris-review

090802ls | 7 hours ago

Thank you for this, I’m definitely going to read this! What I didn’t appreciate tho, was the fact that (as per this review), this book, published in 2019 describes an apocalypse in 2025 😐 post covid, that’s a bit too close to home, thanks 👍

imnottdoingthat | 10 hours ago

during covid I fell into a strange split sleep cycle naturally. but i felt better energy wise. hit workouts hard, lost weight, knocked out to do list. it was the weirdest thing!

thank you for sharing, so fascinating to me.

krebstar4ever | 10 hours ago

Historically, people slept different ways based on their lifestyle and culture.

AggressiveSea7035 | 4 hours ago

Right, this topic gets popular on reddit now and then but last I looked into it, it was far from universal, or at least the evidence was mixed or lacking.

zeitgeistincognito | 2 hours ago

I thought I remembered that too, that the evidence was not strong for this theory.

Measure76 | 10 hours ago

You mean, just like today, some people then also got up in the middle of the night?

guy617 | 9 hours ago

In Islam this is mandatory, first of the 5 prayers is around that time. So if you see a practicing muslim they probably maintain this two sleep habit.

Abyssal_Minded | 4 hours ago

Some Christian traditions have canonical prayer hours set around 12am and 3am. They’re not done very often by laypeople (most do morning and evening), but I’ve heard some of the religious orders still do them.

________76________ | 9 hours ago

I have been everyone I know about biphasic sleep for years. Too many people think they have a sleep disorder for being awake for a couple of hours in the middle of the night and then going back to sleep.

HelloFuDog | 6 hours ago

Before I look anything up, I feel like this has been largely debunked and doesn’t actually match up with history or our natural circadian rhythms.

onlymenooneelse | 5 hours ago

Yeah I'm sure some people do it (like those in this very thread) but that doesn't mean it applies to everyone