Polyphasic Sleep Hacking

Boost energy and productivity while sleeping less

Tag: Dual Core 1

Day 164 | End of DC1 (for now)

Core 1 | 10:30 PM – 2:00 AM

Core 2 | 6:00 AM – 7:30 AM

Nap 1 | 2:15 PM – 2:35 PM

Even though I haven’t checked in on this blog in a little while, I’ve been really enjoying Dual Core 1 polyphasic sleep! This was the first time on polyphasic sleep that I really found a rhythm that wasn’t difficult to keep up. On Everyman, it was really hard to get out of bed about half the time (the other half I jumped right up). But on DC1 I’d say it was only really hard to get up about 10-15% of the time. Typically, these difficulties were tied to my inconsistency, like a really late nap or having a few drinks before bed.

If you’re enjoying it so much, why are you stopping DC1 you ask?

A few reasons:

  • I have a week long trip to Yellowstone coming up in 1 month that I’m really excited for! I’ve learned it’s hard to keep polyphasic on vacations spent with a lot of other people…
  • I’m picking up my Brazilian Jiu Jitsu training and I want to gain about 5 pounds of muscle & boost my strength before I go on the trip. It’s hard to lift heavy and gain muscle on polyphasic
  • Honestly, after almost 6 months of sleeping polyphasic, I’m tired of napping and always being conscious of time and when my next nap needs to be. I just want a break.

I’ll circle back in a couple weeks of sleeping monophasic again and report back! I think in a couple months I’ll jump back on the polyphasic train and I’d still love to create the polyphasic adaptation guide! I wish I had one when I was first starting…


Thanks for always following along and being supportive!

Day 134 | One Wonky Day with lots of Sleep

Core 1 | 11:00 PM – 5:00 AM

Core 2 | 6:30 AM – 7:30 AM

Nap 1 | 4:00 PM – 6:00 PM

Overall, things have been going really well on DC1. This was one sleepy day apparently. I overslept my first core and my afternoon nap and totaled at 9 hours of sleep! I haven’t slept that much in months, since I was adjusting back to monophasic after my first bout of Everyman.

To be fair, I was visiting my parents’ home over this weekend, which is always a really relaxing and comfortable place for me (luckily). Back at home I sleep on my old waterbed (heaven) and my mom has blackout blinds all through the house because she used to work night-shift and sleep during the day.

I’m going to keep an eye on myself and see if this turns into a common thing – passing out for long periods of time after a week or two of DC1. If it is a pattern and not just a case of the comfy beds and laziness on my part, then I’ll increase my second core sleep time a little bit to make sure I’m getting enough sleep daily.


Day 129 | Mental State Impacts Sleeping

Core 1 | 11:00 PM – 2:30 AM

Core 2 | 6:00 AM – 7:30 AM

Nap 1 | 3:20 PM – 3:40 PM

I’m guessing it’s not hugely surprising, but I want  to point out maybe the obvious as the more aware we are the better.

Your sleep quality will be directly dependent on your mental state that day. (This is 100% true for me, if it isn’t for you I’d love to hear about it). If you’re stressed over work, have an emotional blow or get hit with a bout of bad news that’s bothering you – your sleep quality will decline.

Today I had a lot of trouble sleeping in my second core after hearing about a childhood friend that took his own life last night. My mind just couldn’t stop racing no matter what I did when trying to sleep this morning. Honestly, I’m glad I had the hour and a half to really digest the news and be able to spend my time handling the situation emotionally. It was a nice personal therapy session that was unfortunately mixed with frustration that I couldn’t sleep and how I knew I’d be exhausted the rest of the day.

So, it’s important to check in with yourself emotionally throughout the day and understand how that’s effecting your sleep. More important though is to talk to someone you love if you’re ever having dark, depressed thoughts stuck in your head.

Day 128 | Afternoon Nap Shifting

Core 1 | 10:45 PM – 2:15 AM

Core 2 | 5:30 AM – 7:00 AM

Nap 1 | 3:40 PM – 4:00 PM

I’ve been struggling with two things on the new schedule (it’s only been 5 days, so I know a few struggles are to be expected). The first is going to bed early and consistent. I had a filled and long weekend and I always struggle saying no to social invites in preference of sleep. That’s a flaw of mine when it comes to polyphasic sleep.

The second struggle I didn’t expect as much. That is finding a good time in my schedule for my afternoon nap. I really liked on my last everyman round having a noon nap and a 5 pm nap. These signified time to each lunch and time “end my work day” or at least take a break before doing some moonlighting.

Now, with one less nap, it should come around 6-7 hours after I wake up from my second core, which would put the nap around 1:30 – 2:30 PM. That’s an awkward time for me. Having naps in transitional periods is really nice for me, and that time just isn’t working out.

I think the best approach I can take to gain some stability in this nap time is to adjust my overall schedule to make this time a transition. For example, I can each basically two lunches, one small one at around 11 AM when I typically first get hungry after breakfast and then have another lunch after I wake up from my nap around 2 pm… I’m not sure this is the best schedule shift, but I’m going to make some schedule changes for sure.

Day 126 | Napping Well and Feeling Pretty Good

Day 124

Core 1 | 11:30 PM – 3:00 AM

Core 2 | 6:30 AM – 8:00 AM

Nap 2 | 2:30 PM – 2:50 PM

Overall, my third day on DC1 went well. I accidentally got somewhat drunk last night, which doesn’t ever help adaptation and is not a good way to go… (Do as I say, not as I do…)

I still was able to wake up to my first alarm and the only abnormal thing is how much water and snacks I had when I got up at 3 AM feeling pretty hungover, but still a little buzzed.

My second core and my afternoon nap both went great! I slept the entire time and woke up without too much trouble to my first alarm.

Also, I did a Brazilian Jui Jitsu class in the afternoon which kicked my ass. I’m excited to start testing polyphasic while exercising fairly hard again as I’m getting more healthy from a nagging ankle injury.

Day 124 & 125 | Beginning of Dual Core 1

Day 124

Core 1 | 11:00 PM – 2:30 AM

Core 2 | 6:00 AM – 7:30 AM

Nap 2 | 1:30 PM – 1:50 PM

Day 125

Core 1 | 11:30 PM – 3:00 AM

Core 2 | 6:10 AM – 7:40 AM

Nap 2 | 3:00 PM – 3:20 PM

My first two days of DC1 have gone much better than I expected honestly. The first night I woke up 5 minutes before my first alarm from my 1st core and the second night I woke up easily in my first pebble alarm. Both days I had plenty of energy in my night work session and got a lot accomplished (especially important while we’re launching our new app :)

My first day I had trouble sleeping in both my second core (maybe got 30 minutes total) and in my afternoon nap (maybe got 5 minutes if I’m lucky). Day 2 was definitely better. My second core went great and my afternoon nap I still only slept about 5 minutes. The few big contributors to not getting good second core and nap sleeps I think are: 1) being overly excited about starting DC1 and being polyphasic again (I’m weird, I know), 2) being busy at work with a racing mind, and 3) being fully rested going into the adaptation attempt.

I’m guessing I’ll be sleeping good in my second core from here on out and after a few days my afternoon nap will become more solid as I get more tired and need it.

More details coming soon on my schedule and napping strategy during adaptation.

Day 121 | Working toward ‘Normal’ on Monophasic

Core | 11:00 PM – 7:00 AM

I’m still working on feeling normal on monophasic sleep. I had a couple days of feeling a bit weird transitioning back at the beginning of going from everyman to monophasic. In order to smooth the transition, I took one nap in the afternoon for a the first three days (siesta schedule basically). This transition period really helped me feel good in the transfer, but I’m afraid now that it will take longer for my body to feel 100% normal (whatever that is) on monophasic now.

I’m feeling better each day, but I still have a bit of a funk and a big lull in energy in the afternoon. I’m thinking this is just what it feels like to be monophasic, but I want to confirm I’m at a stable baseline before transitioning to DC1 as planned next. Otherwise, it wouldn’t be a very good experiment.

Hopefully, in the next few days the next experiment will commence! I’m excited to figure out dual core sleep – I’ve heard a lot of good things about it and have fallen into it a few days on accident when sleeping Everyman.

Cheers for now!


Day 110 | More Adaptation

Core | 11:30 PM – 3:00 AM

Nap 1 | 6:20 AM – 7:00 AM

Nap 2 | 11:00 AM – 11:20 AM

Nap 3 | 2:10 PM – 2:30 PM

I had some work and social things going on today, so I squeezed my naps earlier in the day. It worked out pretty well except that I got tired earlier than normal.. by about 10PM I was definitely ready for bed.

In 5 days I leave for a 4 day back country camping trip with a bunch of friends (Nature is neat). We’re going to Death Valley, CA. Being awake for 3 hours in the middle of the night in the high dessert while everyone else is passed out sounds very difficult and miserable. Getting naps during the day while our group of 10 is on an adventure would be difficult too.

So, I’m going to use this opportunity to do more experimenting! I’m going to transition back to monophasic in the next couple days – once I get my to-do list onto one page :)

Then, once I get back from the trip I’m going to adapt straight into Dual Core 1 (DC1) sleep. I’m not sure what my schedule will be like exactly yet, but it’ll be around 3.5 hr core at dusk, 1.5 hr core at dawn, and one 20 minute nap in the afternoon. This will be an awesome test of the adaptation principles I’ve developed through research and experience. I’m sure I’ll be tweaking things with what I learn!

Experimenting with DC1 will be interesting because it will be only my second type of polyphasic sleep. I’ve fairly successfully experimented with E3 for the last few months (especially my second time around), but I want to test if the same step-by-step methods for adaptation can be applied to DC1 that I’ve applied to E3.

Thanks for your continued support and feedback – you guys rule!