polyphasic sleep calculator. In this stage, your muscles and body relax. polyphasic sleep calculator

 
 In this stage, your muscles and body relaxpolyphasic sleep calculator  Pressing the button reconnects the Zeo to the

Severe eye sore, dry/red eyes, blurred or double vision, and constant eye closing which requires heavy. Polyphasic sleep calculator – or how to count polyphasic sleep. Watch. 001) but not with poor. Potential scores include 75+ high, 50 – 75 medium, and 49 or below as. Monophasic, Biphasic, and Polyphasic Sleep. We explored how restricting sleep to a radically polyphasic schedule affects neural, cognitive, and endocrine characteristics. (Four sleep cycles would give just six hours of sleep, six sleep cycles would give 9 hours of sleep per night) If you need to wake up by 7am then count back 7. Polyphasic-sleep advocates claim to thrive on as. Authors. This rhythm is a lot shorter than the circadian rhythm, and repeats itself roughly every 80-120 minutes 12–14. Furthermore, you will also get to know all possible alternate scheduling variants that have worked or may work. Raise hormones that make you eat more and gain weight. This sleep pattern involves breaking up the standard 8-hour continuous sleeping cycle into shorter periods spread throughout the day. Polyphasic sleep, or sleeping for more than three segments per day, is also practiced by some cultures. Begin by cutting three hours per night from your regular sleep schedule. Knowing that there is a limit will help specifically new polyphasic sleepers pursue. To as little as 2 hours a day. Humans need sleep, but only certain stages of sleep are important for us to recover each night. Napchart. It usually is a series of six to eight 20-minute naps throughout the day. Most of the sleep goes into the night, while a longer “nap” duration is in the day. Claudio Stampi. Use the Hours Calculator if you would like to find out the number of hours slept when you know what times you woke up and went to bed. No Real Benefit: Polyphasic sleep is thought to help improve the quality of sleep and reduce the total overall hours of sleep needed. Tri Core: For Triphasic, the dark period should cover the wake gap between two cores at night. It was a long time ago that i did that, and the only tools available at this time where mostly podcast and books. There are plenty of studies (not sure about rigor) and reports of people sleeping this way. Log in. Mechanism: 1 core sleep before midnight to gain as much SWS as possible, 4 naps should theoretically only contain REM. Sleep specialist Marri Horvat, MD, MS, explains the different types of polyphasic sleep patterns and what to know before you consider giving any of them a. Biphasic sleep. We know that different sleep stages possess different sleep pressure. A cup of coffee or caffeinated soda is recommended at the beginning of your shift. For example, if you sleep for 8 hours and have a typical polyphasic sleep with three phases, your polyphasic sleep lasts about 2. The only studies that proport any kind of “evidence” against polyphasic sleep focus on low-tst schedules like uberman, E3, and triphasic instead of more reasonable schedules, and they focus on unadapted sleepers which does not do polyphasic sleep justice (it is expected to be sleep-deprived during adaptation which will inevitably lower. This is why schedules with less total sleep time (TST) need more sleeps spread throughout the day to be sustainable. Here's the possible options for you: E1: 4h core + a nap. The most attainable of all polyphasic sleep schedules, shown below, is called the Everyman. Specification: 2 core sleeps, with a short gap between them. But the recommended time is 7 hours. g. It gives taller people over 6 feet of room to stretch out. One person's schedule was disrupted by travel for a while after Burning Man, and they're now re-adapting. When sleeping in a normal quality bed, sleep accelerators will save 1. Increased screen use in bed could definitely impact TikTok users’ sleep schedules. There are a ton of polyphasic sleep schedules out there, but one of the most popular is a core sleep that lasts anywhere from 90-minutes to 6 hours, which are then supplemented by 20-minute naps. The Side Effects and Risks of Polyphasic Sleep. Polyphasic sleep is the practice of sleeping in numerous smaller blocks during the day as opposed to sleeping once as is common in many countries. Polyphasic Sleep = : sleeping 3 or more times during a 24-hour period, in no specific pattern. The subject was allowed to sleep for short naps for a total of 3h per day for 2 months. Total sleep: 2 hours 50 minutes. This is known as polyphasic sleep. View community ranking In the Top 5% of largest communities on Reddit. 5 hours and then you take three 20-minute naps during the day. Samuel Tessaro - Creation of the new interface. Mechanism. A new study shows that sleeping consistently may matter more when trying to get to better sleep instead of sleep duration. Many people who attempt polyphasic sleep do so to sleep less than the 7-9 hours that are typically recommended for adults. Polyphasic Sleep Calculator. Also referred to as segmented sleep, polyphasic sleep describes a sleep schedule with three or more. When changing over to a polyphasic cycle, the lack of sleep tricks the body into entering REM sleep immediately instead of 45 to 75 minutes into sleep like in the monophasic sleep. Days 4-7: Now spread out your five hours of sleep into three blocks of time. It is unlikely for a person with average sleep requirements to get all necessary sleep on this schedule, so chronic sleep. In a way, it starkly reminds of Segmented sleep, a very old sleep pattern. Well basically what /Series_of_Accidents said. 5 – 6+ poly (At least 6h for beginners) >21. Using a sleep calculator can help you stay on top of any signs of sleep deprivation you might be facing. There is a transition period from monophasic to polyphasic that takes a lot of dedication to change, and most say their alertness drops significantly during this time. Add extra naps, or core earlier after the first sleep phases: to gain quality REM, or SWS it takes practice. Samuel Tessaro - Creation of the new interface. Biphasic sleep. This astonishingly short sleep time contrasts with fellow basketball star Lebron James, who claims that he sleeps 12 hours per night (three. Cheers! Great tool. Calculate how much you need to sleep for efficient sleep! How old are you? 20 years. and three 20 minute naps at 5:40 a. Polyphasic Sleep & Why We Forget Dreams Basics of dreaming. In addition to the timing of sleep, something that is often overlooked is how much sound and deep sleep that person is. This makes DC1-extended, DC2-extended and DC3-extended good candidates. By taking several shorter naps throughout the day, you can avoid the afternoon slump and maintain high levels of energy and focus. Sleeping 4 hours twice a day (polyphasic. It has not really been shown to b. And that isn't true polyphasic sleeping. Note that this post only focuses on reducing polyphasic schedules and their flexibility. Polyphasic Sleep While biphasic sleepers sleep twice per day, polyphasic sleepers sleep in multiple segments per day. Puredoxyk postulated that each full cycle of a core sleep is equivalent to a nap full of REM. If you didn’t follow that experiment, for 5-1/2 months (Oct 2005 – Apr 2006) I followed a pattern of sleeping about 20 minutes once every four hours around the clock — 6 naps every 24 hours, about 2 hours of. moderate = 30-40 mg. Everyman 2 is part of the Ubersleep Formula that details the Everyman schedules with the number of naps and the duration of the core sleep. The idea is that you bring together a bunch of chunks of rest throughout the day to make up the equivalent of a complete night’s rest. Each of these is in contrast to monophasic sleep, which is one period of sleep within 24 hours. Sleep Medicine 20 years experience. This sleep pattern is typical in Latin American countries as well as Spain where people take naps in the afternoon. As you can see, polyphasic sleepers. Uberman Pattern. Introduction. 5 The PSS and other proponents of polyphasic sleep claim that. Polyphasic sleep is the practice of distributing multiple short sleep episodes across the 24-hour day rather than having one major and possibly a minor (“nap”) sleep episode each day. 6 hours per day . This significantly increases a person’s daily awake time. Participants slept for 6. Scientists suggest that adopting a polyphasic sleep schedule may increase productivity in the short term, a disrupted circadian rhythm can do more harm than good in the long run. Pinterest. The pattern we are using is to nap for 20 to 30 minutes every four hours, throughout the day. As part of the Formula in Ubersleep, Everyman 1 is part Everyman and part Biphasic. Another genius who utilized napping during the day was Leonardo Da Vinci. You gotta know where your limit is (by experimenting your sleeps under different. Summary. Polyphasic Sleep Calculator is intended to be a facilitator when calculating your nap times in polyphasic sleep. Save to profile. Most people need 7–9 hours of sleep per night, but working out how much deep sleep. Now, it's the exact opposite - I can sleep 4. ( 5) Here’s a rough range of how much sleep we need depending on what stage of life we’re in, so you can use the sleep calculator based on age: (6) Newborns: 14-17 hours. SlideTeam has published a new blog titled "9 Folien, die Sie in Ihrem Pitch Deck wie Deliveroo haben müssen". For the past several weeks, I’ve been receiving daily emails with questions about this experiment. Classification: Biphasic schedule in a Dual Core style. Puredoxyk postulated that each full cycle of a core sleep is equivalent to a nap full of REM. This way, you still get the benefits of 8 hours of sleep without wasting all of the time it takes to get to REM cycles, resulting in a much more efficient sleep. Polyphasic Sleep While biphasic sleepers sleep. 5 to 5. Insomnia is a very common and problematic sleep issue in humans. First, assume a 7. Therefore, It’s a nap-only polyphasic sleep method. You can use a. It is made up of four equidistant 30m naps taken every 6 hours, totaling only 2h of sleep a day. Sleep in animals refers to a behavioral and physiological state characterized by altered consciousness, reduced responsiveness to external stimuli, and homeostatic regulation observed in various animals. Apparently, repartitioning is a ubiquitous concept for even short. After a few nights of insufficient sleep, you are likely to feel sleepier during the day. Siesta is a biphasic schedule, which consists of a longer core at night and a. Because you only get 2 hours of sleep each day, you can also get a lot done, and once fully adapted, this cycle means you’d be able to quickly fall asleep anywhere. 6 hours during daytime. Biphasic (or diphasic, bifurcated, or bimodal) sleep refers to two periods, while polyphasic usually means more than two. HTML, CSS, and JavaScript. Typically, this means four to six periods of rest total. You must attempt to sleep during the day, when the body is strongly promoting wakefulness, and attempt to stay awake during the night, when the body is strongly promoting. Claudio Stampi (born 19 June 1953, [1] in São Paulo, Brazil) is the founder (in 1997), director and sole proprietor of the Chronobiology Research Institute which he runs from his home in Newton, Massachusetts, US. You can then visualize and mark this data to see your sleep architecture. You will be given multiple results based on your age as well as your goal wake time or bedtime. Polyphasic sleep is an alternate sleep schedule focused on getting the least amount of shut-eye as possible. 5 yrs (preclinical) was sleeping 1am or 2am to 6am (4-5 hrs) at night and then taking a 1-4 hr nap in the afternoon or evening. That is also why it is often necessary to fall asleep timely. Polyphasic sleep refers to a person sleeping for three or more periods every 24 hours. During sleep, there is a decrease in muscle activity, and interactions with the surrounding environment. Sleep and metabolism have a very close relationship. Polyphasic sleep is known to sleep researchers as a variant of a sleep pattern that is set in opposition to monophasic sleep. Puredoxyk invented it following the extremity of Uberman. Was this helpful? Types of sleep pattern An individual’s sleep pattern is dependent on their. Scientists often refer to insomnia as the inability to fall asleep and maintain sleep1. His sleep pattern is estimated to have been around 1. Everyman 4 (2 hrs and 50 minutes) Proposed by: Puredoxyk. Triphasic Sleep is where it actually gets polyphasic. For most schedules, it should begin around 1-3 hours (the default recommendation is 2 hours) before your dusk/evening sleep (core for Everyman, first core for Dual core, TC1, and TC2, and evening core for Triphasic . Several things to note: If you prefer schedules with only cores (long sleep phases), then Siesta, Segmented, Triphasic works best. Pressing the button reconnects the Zeo to the. During deep sleep, the body restores various functions, including energy and memory. Introduction. Enter. So dolphins are similar to people with insomnia who are never quite asleep. . 5-3. What you did was sleep a little and take a few naps during the day. Most polyphasic sleepers will sleep between 2-7 hours total for the entire day. Dymaxion:only two hours of sleep per day in the form of 30 minute naps every 6 hours. Go to or click the link in the description to take your FREE 30-second quiz and get started today!OTHER SLEEP VIDEOS (Playlist)h. Sleep Tracking. m. This advice comes from the Polyphasic Society’s website, which recommends staying awake for a full 24 hours to “induce sleep deprivation,” the same way you might fast the day before a big diet. Reportedly, Puredoxyk coined the Uberman schedule, which requires six naps of no longer than 30 minutes. Although alcohol may make you feel drowsy, as the effect wears off it can actually , so you should avoid drinking before bedtime. Three went back to Everyman-3. ; sleepytime works by counting backwards in sleep cycles. Nine-year-old Jane Rowth blinked her eyes open and squinted out into the moody evening shadows. The polyphasic sleep cycle is when you sleep in short bursts throughout the day rather than sleeping all night. Learn about the different Polyphasic Sleep schedules in this easy-to-use navigator! In this section, you will learn more about specific schedules in each schedule. Many people who attempt polyphasic sleep do so to sleep less than the 7-9 hours that are typically recommended for adults. ) As well as Biphasic, Dymaxion,. g. 10-60 minutes. For this reason, many first-time polyphasers have attempted this schedule. Sherin Ibrahim Howett answered. The Uberman cycle involves polyphasic sleep at 6 intervals each day - napping every 4 hours for 20 minutes at a time. Aside from the usual optimization of sleep hygiene, which is done by controlling food intake times, light exposure, exercise times etc. m. A polyphasic sleep pattern can be more difficult for many people to adjust to than a. Alpha-delta sleep is an abnormal brain wave pattern associated with certain health conditions. Today. It used to be the only Everyman schedule, before E2 and E4 came along. While that may be a long-term effect, I haven’t found my dreams to be more vivid. Polyphasic sleep is a revolutionary sleeping pattern that has gained significant attention due to its potential benefits for productivity and overall health. By segmenting sleeping phases, polyphasic sleepers are able to sleep for much less in total, sometimes only 3 hours a day. I consider the experiment a huge success, and I. Stage 4. The results are broken down to optimize your REM and non-REM sleep cycles. It is sleep schedule that consists of 6 20-minute naps in four-hour intervals. The shorter period of. idea for making all items movable (time shift) - grab the 0 and rotate to desired time shift, circle then rotates back finalizing the time shift. Sleep schedules you can choose from: Biphasic — 5-7 hours during the night and 20 minutes during the day (3 variants)Learn about biphasic sleep schedules, the way people slept before the advent of artificial lighting. . In general, activities which involve only light-to-moderate exercise (e. In hindsight, it probably would have made sense to start to journal every day to explain how I was doing. As we journey through our own cycle of life, our bodies change, and we need different amounts of slumber. There are three types of sleep cycles—monophasic, biphasic, and polyphasic. How does polyphasic sleep work? The aim of polyphasic sleep is to reduce the total duration of sleep so that the waking phase can be extended and used more. Reports from the National Institute of Health show that screen use in bed is associated with lower quality sleep. There are variations of this sleeping pattern, and you can add more naps if needed, or increase your large sleeping block if needed. Because of this role, humans spend the most time asleep in this stage,. Polyphasic-sleep. Giraffes can sleep standing up as well as lying down, and their sleep cycles are quite short, lasting 35 minutes or shorter. Delete. Touch device users, explore by touch or with swipe gestures. Shape: circle wide. See full list on sleepfoundation. Lex Fridman Podcast full episode: support this podcast by checking out our sponsors:- MasterClass: a "polyphasic" schedule (where polyphasic is here taken to mean naps evenly distributed across the day) is in essence doing battle with your own biological drives. The nap has a flex range of 90 minutes in either direction. Get notified when a sleep period is upcoming and track it with a single tap to gain valuable information. 24H Time visualizer. 5 hours per 24-hour period. This app allows you to choose from different polyphasic sleep schedules. All changes saved. Siesta sleep, which contains a shorter daytime core of 90m, is the most popular core-only polyphasic schedule. 3. Biphasic sleep vs. Polyphasic sleeping is a segmented sleep pattern during which you’ll have more than the two periods of sleep that a biphasic sleep pattern allows. 5-8h monophasic baseline. He had a sleep schedule where he would have a 10-minute nap every 2 hours. Tri Core: For Triphasic, the dark period should cover the wake gap between two cores at night. It consists of a series of naps with no core sleep period. Uberman (6 20-minute naps): 2 hours. Furthermore, insomnia also includes insufficient and nonrestorative sleep despite ample sleep duration2. This can impair your abilities to concentrate, think clearly, and process memories. After waking, the subject had cognitive tests to perform. . It consists of four equidistant 20 minute naps (one nap every 6 hours) and no cores,. Transform your relationship with abundance in this popular 30-day video course. For the core sleep, you sleep a normal amount at night. Dream more – generally, those who sleep frequently, also dream more. A lot will change during and after the process; however, only you are capable of seeing your own changes. 22:00 – 22:20 – Nap. made by @larskarbo. Here we talk about sleep patterns and take a closer look at each. We mostly reside in the Polyphasic Sleeping Discord server and the /r/polyphasic Subreddit. Typically biphasic sleep refers to sleeping during the night and taking a midday nap. To calculate how long your type of polyphasic sleep lasts, divide the total sleep time by the number of sleep phases. For TC1 and TC2, the dark period should cover at least two of the cores. Szymanski. Real polyphasic sleeping doesn't have that 5 hours at night. Sleep-onset REM (SOREM) is an abnormally rapid transition from wakefulness to REM sleep, skipping the period of non-REM sleep that normally characterizes the beginning of the sleep period. — polyphasic. The standard Everyman 3. All of the twenty or more known attempts to adapt to a type of flexible, variable Everyman without prior standard. Everyman Sleep is the most popular type of polyphasic sleep. 多相睡眠(たそうすいみん、Polyphasic sleep、分割睡眠 Segmented sleep, divided sleep)は、一日に複数回の睡眠をとることである。 人工照明発明以前の人類が行っていた、 動物 の一般的な睡眠法とされる [1]The average giraffe sleeps for 4. 5h), E3 (4h), Uberman and Dymaxion. Toddlers: 11-14 hours. Somewhere between sanity and insomnia lies polyphasic sleep, now gaining devotees in the blogosphere. Researchers also categorized sleep patterns into 1,. Why sleep is essential for health. After that it will remind you when it's time to go to sleep, and will wake you up on time. For example, start going to bed at 12:30 a. 5 hours of sleep per day. In biphasic sleep pattern, you aim to sleep. When the filtering specifications of your glasses aren’t available in the list, you can enter the “Behind the scenes” tab. Minimum sleep threshold is a very important parameter for well-being, especially in the context of polyphasic sleeping. Recently, polyphasic sleep has been nicknamed the "life hack," or a way to make our busy lives more efficient by sleeping less and doing more. Polyphasic sleep is the practice of sleeping more than once a day. Higher daily sleep quotas and shorter sleep cycles. While the prevalence of polyphasic sleep is unknown, anecdotal reports suggest attempts to follow this practice are common, particularly among young adults. Polyphasic Sleep While biphasic sleepers sleep twice per day, polyphasic sleepers sleep in multiple segments per day. Dr. Classification: Everyman schedule. One core sleep of four hours and two 30 minute naps evenly spread out throughout the day. People have experimented with various patterns, and today a couple of differently named sleep schedules exist. 6 breaths per minute in the following order: breath deep x 4, hold breath x 2, release deep breath pushing it all the way. Polyphasic sleep is the practice of sleeping during multiple periods over the course of 24 hours, in contrast to monophasic sleep, which is one period of sleep within 24 hours. In this episode, I discuss a simple and reliable measurement called your “temperature minimum” that you can use to rapidly adjust to new time zones when traveling and to offset the bad effects of nocturnal shift work. It is most pleasant and easy to wake up at this stage. There are forms of polyphasic sleep that do work well long term because they’re closer to a “normal” amount of sleep, e. Tesla is an extreme schedule designed by Sharif Olorin in 2009 that combines parts of Uberman and Dymaxion. I also discuss tools for adjusting sleep and waking rhythms in babies, teens, new parents and the. The classic Uberman schedule, 6 equidistant naps. Biphasic sleep pattern means strictly twice in a day, once in a night, and once during the day. Research on Polyphasic Sleep and Lucid Dreaming. When counting, please deduct the time taken to fall asleep, which can be very different. With the Uberman polyphasic sleep schedule, no large chunks of sleep are allowed — only 20-minute naps. After 45 DAYS staying on this schedule and sticking to. For E1 and Siesta, it should start before core and end. Polyphasic sleep calculators suggest different quantities and patterns of sleep. Polyphasic sleepers should avoid even products with small amounts for the most part. Each of these is in contrast to monophasic sleep which is one period of sleep over 24 hours. What to know about deep sleep. Usually I got 5 to 7 hours of sleep per day this way (ideally). For example, Everyman 1 can give 2 hours of extra wake time just in the morning compared to monophasic sleep. And it won't help. Sadly, due to its extreme difficulty or likely impossibility for people with normal genetics. 1. 5h. Polyphasic sleepers might sleep as many as six times a day, in some combination of two- to three-hour blocks of sleep and 30-90 minute naps, which over 24 hours are meant to add up to the. Kobe broke his sleep up into two 2-hour blocks, giving him a total of 4 hours of rest per day. Polyphasic sleep, a term coined by early 20th century psychologist J. After that it will remind you when it's time to go to sleep, and, of course, will wake you up on time. More and more often used sleep calculators are irreplaceable tools for people who have decided to have polyphasic sleep, including biphasic sleep. Raise your risk of accidents. It’s much easier to be awoken during these early stages of the sleep cycle. Maximum wake gaps are dependent on the schedule, time of day, as well as the sleeper's individual needs. Solitaire, crossword puzzle or sudoku - nothing to engaging should do. Sleep is more than the sum of hours slept. Then, manually input the specifications. ”. Well, less to how much you feel is enough, not to be. What is it? Polyphasic sleep cycles Is polyphasic sleep healthy? Is polyphasic sleep bad for you? Who should try it? How-to Biphasic sleep? Sleep safety precautions Summary Hiroshi. Polyphasic sleep pattern. Finally, I decided to give polyphasic sleep a go, one thing was to reset my chaotic circadian rhythm completely - 1 cyclic headache once a week on average due to sleeping late into the morning, like 02:00 or even later, and the sluggish feeling throughout the day, especially when it came to noon, at which I had no energy left in the tank. The average adult human takes fifteen minutes to fall asleep. In polyphasic sleep, the total daily sleep duration is divided into several shorter sleep episodes, often lasting. So yes, if you sleep 7-8 monophasically, doing Uberman sleep with only 2h sleep in the schedule will do you no good in the long run even if you can adapt to this schedule, so yeah, polyphasic sleeping is a double-edged sword, just like other things in our life. Specification: 1 min-length core (1 full cycle), 4 REM naps. For example “1” will filter more light than “8”. It’s hard to fathom that only 60 days have passed – it feels closer to 120 days. The shortest nap duration, thus, is around ~40 minutes. This kind of sleep is called polyphasic sleep. 18:20 – 22:00 – Awake. The E2 Sleep Schedule Cycles are: 11:00pm - 3:30 am / 8:00 am - 8:20 am / 2:30 pm -. 1080/02678378908256879; Miró E, Cano M, Buela G. Polyphasic-sleep advocates claim to thrive on as little as 2 hours of total sleep per day. 5 hours of sleep per night is ideal for most people. The immediate difference from NREM1 is that this stage 2 is the transitional sleep stages between SWS and REM sleep. Jan 10, 2016 - Plan your sleep and visualize complex time schedules with this sleep planner. Research has found both short- and long-term negative effects of sleep deprivation, proving that your body does not adapt to lack of sleep. Plan your sleep and visualize complex time schedules with this sleep planner. If anything my dreams have been less vivid and more simplistic. A. Spread the love 90-Minute Sleep Cycle Calculator 90-Minute Sleep Cycle Calculator Enter the time you plan to wake up: Calculate Bedtime FAQs How many 90-minute sleep cycles should I get? The number of 90-minute sleep cycles you should get depends on your individual sleep needs. These various bouts of sleep can be as frequent or infrequent as you'd like, but the idea is to get less total sleep while apparently achieving. Following the naming scheme of polyphasic schedules, E3 has 1 core sleep and 3 20m naps. Monophasic sleep. Overall, it seems to me that your knowledge on polyphasic sleep has been either largely outdated (since the 2000s), or that you really believe mainstream scientists too much. In this sleep pattern, a person sleeps several times in a day. 1. From the name, it is also the first sleep stage in a sleep session. There is intuitive polyphasic sleep schedules (which is what we will focus on primarily throughout this blog. Get notified. Sleep specialist Marri Horvat, MD, MS, explains the different types of polyphasic sleep patterns and what to know before you consider giving any of them a shot. Again, skeptics will probably assume that a person simply can’t functionAbout this app. Early mammals engaged in polyphasic sleep, dividing sleep into multiple bouts per day. These patterns depend on age, health, sleep quality, and personal preferences. With over 300 calculators covering finance, health, science, mathematics, and more, GEG Calculators provides users with accurate and convenient tools. You stay awake for three hours and 40 minutes. 3 - 3. This is according to their sleep placements relative to the local time. Polyphasic sleeping doesn't have one big block of sleeping and then a few naps. I regret that and want to go back to this for better sleep management. Play a casual semi-boring game to speed up the sleep process.