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how to read oscar cpap

If youre using your machine in autoset mode, the numbers provided may be pressure setting data. The normal tidal volume is 6 to 8 ml/kg. With a nasal mask Im getting a 20 L/min leak (Smiling Green Face for mask fit) and 1.5 events per hour. by dorilou28 Sun May 16, 2021 12:41 pm, Post Hey Danny, congrats on feeling better since you started your CPAP Therapy. All in all, the AutoSet device, and its algorithm, is excellent for treating OSA patients. Im sorry I couldnt be of better assistance. etina/ Hi Im a new user of CPAP machine. At the bottom of the report it refers to the 95th percentile. Interstitial lung diseases, such as idiopathic pulmonary fibrosis and asbestosis, cause progressive fibrosis of the lung tissue. It has never been that high. I just recently switched to 3rd shift, when I sleep in the morning around 4hrs or more my Therapy hours always read less then hour..But when I sleep overnight when Im off work ,it gives me the correct time,4hrs or moreI dont understand, why is that. [new] Improve Somnopose import options. / I have a resmed AirSense 10 machine. If you hover the mouse cursor over the machine name, the model number and serial number will appear in a pop-up box. Mostly OSCAR is a reporter, it is even in the name, OSCAR - the Open Source CPAP Analysis Reporter. There are three reasons that your AHI may rise. The AutoSet algorithm responds proportionally and so a metric is used for each condition to which it responds. While these are fairly easy to interpret, you should really understand what the acronyms connected to the numbers are. A flattening index is a non-dimensional feature (e.g., a real number) calculated using a patient's inspiration waveform. This force, assuming 8 inches of water, is equal to the maximum pressure produced by a CPAP, 20 cm of water (cmw). As such, it is not particularly useful, since you can see the clusters in the Event Flags chart at the top, and also see which types of events are occurring. Once you know what PB looks like, you can often spot suspicious patterns by simply scrolling through the Flow Rate data in a 5-10 minute window. To go to a particular bookmark, click on the date. _________________. OSCAR converts this data to graph form allowing the user to view this data down to a breath by breath level. Re: how to read Oscar - so confused and overwhelmed. SH was developed by a member here, and then reworked (a lot) into Oscar by the same and other people (working on a Mac, but it's completely as good on PCs). When my doctor saw that my 30-day average for AHI was 5.6, he said that was fine. If you confirm that the mask fit is definitely, giving you numbers, please give us a call for further assistance. To calculate AHI, you add the total number of apnea episodes, including hypopnea episodes, and divide by the number of sleep time minutes. This measurement helps to assess compliance and is a factor that insurance companies measure for coverage purposes. Ive tried going back to my Dream Machine, sleeping on my side, use a fixed pressure and the new mask and my AHI is back up to over 12. Please feel free to reach us at: 1-800-356-5221, or you may e-mail us at: cpap@cpap.com. Ive been on CPAP for about 15 years. Hey Pat, an AHI of 5.6 denotes Mild Sleep Apnea. Hi Diane, it must be very frustrating not having the total used hours recorded. I will go read and Ill be back with hopefully the correct graph to show you all. Resmed and Philips machines both show snoring as a graph with the height of the trace indicating the intensity of the snoring. Mask Pressure is the Pressure at the mask. Any thoughts? The following picture is from a CPAP device where the pressure is at a constant eight(8) cmH2O. I just need a little assistance, not a machine blowing air down my throat all night with a mask on, which is not healthy, I dont care what anybody says. You may speak with your doctor, or your local sleep center to see if they have the software available. Clicking on the blue and yellow session buttons will include or exclude sessions from the display of the night's data. I just want an oral device. Periodic Breathing can be confirmed easily on this chart and serious breathing patterns such as CSR can be identified and Flow Limits become readily apparent. After using CPAP last night I want to take a look on the data. Hi Akshata, im sorry to hear that you are having to gasp for air. Why should I have an AHI of 59 today amd 95 yesterday if using the cpap machine? The normal leak rate is 24 L/min, so your 37 is a bit on the high side. Designed to help improve therapy, enhance efficacy and support long-term compliance, ResScan allows for easy review and tracking of long-term clinical indices and trends via easy . My machine says Settling 4.0 what that means. Last night, Thursday, I went to bed at 10:30 and slept until 8 but it said I had over 11 events. First is mask leak. , its 0.9 is that normal? Post You can zoom in to examine an event more closely. Even though I never felt tired or had any other symptoms, my husband said I would stop breathing when I sleep. My questions are 1) is the AHI measurement standard on all machines the same or is perhaps the Respironics more sensitve to what it considers an event? severity of Obstructive Sleep Apnea Hypopnea Syndrome (OSAHS), Apneas (200), Hypopnea (200) = Total number of episodes is 400, Actual sleep time (420 minutes) (seven hours x 60 minutes), Divide the 400 by 420 = .95 x 60 = AHI 57 (severe apnea). For further questions, or concerns, please feel free to reach us at: 1-800-356-5221, or you may email us at: cpap@cpap.com. Edit: Found the problem in a german speaking forum. A known algorithm that is used to automatically set patient pressure in APAP machines is called ResMed AutoSet. This will allow you to view all of your data, including a graph showing stuff like the types of apnea events you experienced, when you removed the mask, when and how much leakage there was, etc. The AHI, is considered normal if under 5, so your AHI of 7, is too high. Additionally I have the Resmed Airsense 11 and it senses when I fall asleep and that is when it begins to give me the higher pressures. https://www.cpap.com/productpage/bfan-bedfan-night-sweats-cool-sleep-comfort. When reading your sleep report: For the IHA reading. If you did a sleep study, you might consider checking your results (or asking your doctor) what your AHI was without the use of cpap therapy for comparisons sake. The normal leak rate usually depends on the mask you are using and your pressure setting. by dorilou28 Sun May 16, 2021 6:11 pm, Return to CPAP and Sleep Apnea Message Board. The y-value of the OSCAR AHI graph at any given time is the total number of events recorded during the previous 60 minutes of run time in the current session. Place the straw down to near the bottom of the glass, now let your youth loose and pretend you are a kid and blow bubbles. ResMed machines record Respiration Rate, Tidal Volume, and Minute Vent, they are not calculated. Is something wrong? David Repasky has been using CPAP treatment since 2017 and has first-hand experience with what its like to live with Sleep Apnea. I dont understand and have been reading and reading. For the past 2 months I was getting a reading of 2 or smaller for BOTH EPH and AHI. http://www.cpaptalk.com/viewtopic/t172943/Waking-up-gasping-for-air-with-cpap.html. We have a product called bFan, that may provide you some relief. I don't think there's anything you can do to determine from the data if they're real. The Pressure chart looks a little jointed, because of its resolution. 1 OSCAR Help 2 Creating a Profile 3 Importing Data into OSCAR the FIRST time 3.1 macOS Ventura 13 users 4 Importing Data into OSCAR AFTER the first time 4.1 Step 1. It is normally detected by clusters of Obstructive and Hypopnea events usually associated with an uneven and smaller/narrower Flow Rate chart. Theres a certain amount of leak coming from the mask thats considered normal. The increase in ventilation can reduce your CO2 level which affects respiratory drive. / Morbid obesity and sarcoidosis are examples of extrinsic problems that cause restriction by limiting chest wall expansion. Please feel free to reach us at: 1-800-356-5221, or e-mail us at: cpap@cpap.com with any further questions, or concerns. Please see the link below for more information on headache and other side effects that you may experience. That is not pressure, that is flow. Suomalainen / If so this could account for the increase in your number of events. Please tell me what the numerical values mean when running the mask fit. Mask: Mirage SoftGel Nasal CPAP Mask with Headgear. Did you take any type of different medication, or have any alcohol before sleeping? I feel like a new person. Your CPAP results will show the percentage of time the Auto Adjust feature worked to bring your pressure levels up to the maximum setting. Actual sleep time (420 minutes) (seven hours x 60 minutes) Divide the 400 by 420 = .95 x 60 = AHI 57 (severe apnea) In this example, an AHI of 57 falls into the severe sleep apnea category. When a particular event becomes one hour old, it is dropped from the running total. The Time at Pressure is a companion graph of the Pressure graph, using the same data and configuration. I like less pressure because it makes me more comfortable. My AHI reading below 3. Also, please be sure that there arent any holes in your hose. Depending on your machine settings there may be several traces shown - usually the inhale pressure (IPAP) and exhale pressure (EPAP). Are does this mean that my 4 averaged event still took place even though the machine ramped up to the max of 20? Espaol / This is caused by a dysfunction in the central nervous system, not a physical obstruction, and requires a different type of machine and PAP therapy. The PAP mode is the particular algorithm set on the machine (many machines can operate in more than one mode). 2. The apnea/hyperapnea cycle is around 45 minutes to 75 minutes.. When the excessive leaking reaches the level where the machines manufacturers believe the machine will not properly maintain the therapeutic pressure setting, the leak is said to be a Large Leak. Different amounts of air will be needed if your sleep apnea occurs due to: Also, being obese or overweight could exacerbate things. Anything in excess of that amount is an "additional leak". An AHI, below 5, is considered normal. Here's an example of PB that may be CSR pulled from a ResMed machine: Evaluationhttps://www.ncbi.nlm.nih.gov/books/NBK448165. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); COPYRIGHT 19992021 US EXPEDITERS, INC. ALL RIGHTS RESERVED. How is that possible, I had the machine on all night. If you hold your breath, the machine may record an AHI. Hi Walt, Is the EPR and Humidifier settings the same for both machines? ago Has anyone tried replacing the SDcard on Luna II. Expiration occurs to expel carbon dioxide and prevent it from accumulating in the body. I feel energized as hell. In the absence of any measured flow disturbance, the pressure is allowed to decay slowly and hopefully an equilibrium pressure will be achieved that allows the patient to sleep arousal-free. Hi, How do I get the Oscar reading to show a full 8-`10 days? Whether this is worth doing on a regular basis is another question altogether. Waking with headaches could be an indication that your pressure is too high, or maybe a sinus problem. Summary Information (AHI, Machine, Hours, Event rates), Tabs: Details, events, notes and bookmarks, Cheyne Stokes Respiration Description (CSR), Issue - Various (Flow Limitation, Snoring, Mouth Breathing), Additional Info - Flow Limitation/UARS and BiPAP, ResMed - AUTOMATED CONTROL FOR DETECTION OF FLOW LIMITATION - Patent Application, Respiration Rate, Tidal Volume, and Minute Vent, https://www.ncbi.nlm.nih.gov/books/NBK448165, http://www.apneaboard.com/wiki/index.php?title=OSCAR_-_The_Guide&oldid=6661, ApneaBoard.com copyright and user agreement, The left part of the Daily screen is referred to as the. Any periodic waxing/waning patterns will show up at that magnitude. OSCAR is software compatible with Windows, Mac and Linux operating systems, developed for reviewing and exploring data produced by supported CPAP, bilevel, ventilators and related machines used in the treatment of sleep apnea. However, there is one form of PB that is called Cheyne-Stokes Respiration (CSR) that is clearly associated with some forms of heart disease, including congestive heart failure. Additionally, your smartphone or wearable sleep tracking device can also help you better manage your sleep and in some cases, even help uncover if you have sleep apnea. I'm going to bump you up here now with this post. Your low readings means your CPAP machine is working for you. I managed to get a CPAP prescription from my PCP, and rented a ResMed 10 from CPAP Box. Which is the more significant reading of the two? I see flames on screen. Congrats on your weight loss! Sleep is analyzed in children with more stringent criteria. Note also that sessions can be turned on and off using the small green/black buttons in the section information panel. Please answer. If so, those wavy lines are related to the use of your humidifier. The great news is youre not doomed. I view it as the current target pressure. _________________. This is the pressure the device is set at. Resmed machines show a single trace indicating the additional leak. Are you able to sleep through the night or if youre still waking up frequently? Asthma is a reversible condition characterized by airway hyperresponsiveness to various stimuli. The bit with colors needs to go down the left side, but again, wait please. H Ive using my dream machine for 4 months now It automatically adjust to my breathing and it communicates with a app to my phone via Bluetooth to monitor .By far the best machine Ive came across and I also use Flonase everynight before bed .Ahi .3. Please view the link below from our cpaptalk.com forum, to see what other CPAP users, are saying. Hi Kamleshwar, Hi Melissa, it sounds like the machine is displaying your pressure setting. I went back into Oscar and have no clue how to capture the entire chart showing lines across from it. If you have further questions, or concerns, please feel free to reach us at: 1-800-356-5221, or you may e-mail us at: cpap@cpap.com. It attempts to measure essentially how flat-topped the waveform is. A simplified view of the different types of events you have experienced. I am very confused .I went to sleep around 1AM, went to the bathroom twice during the night. Nederlands / My apologies, but I need more information in order to accurately answer your question. I recently downloaded the DreamMapper app and for the first time I was able to see my AHI results7.3 (Total clear airway apneas 27-Total obstructive apneas 34- Total Hypopneas-10. CPAP machines now have features that can "ramp" up your pressure to make it easier for you to adjust to at the beginning of your sleep session while "automatic" machines can intelligently adjust your pressure up and down automatically based on your current AHI pattern while you sleep. For further questions, or concerns, please feel free to reach us at: 1-800-356-5221, or you may email us at: cpap@cpap.com. This can be clinically observed and documented with a cyclic variation of breathing pattern with a change in saturation from 90% to 100%. I am also exhausted at 10 am. I agree you need a higher pressure I'd say 9, but 10 also works. Hi David, When I awoke at 5:30 my ahi rating was 2.2. To help understanding of what you see read the SleepyHead tutorial topic in the Announcements section of the main forum. By default (in accordance with Resmed guidelines), Oscar flags any additional leak over 24 L/min as an excessive or "large leak". The available flags will vary depending on your machine. EPR=3 requires a min of not less than 7. Both Events and SPAN Events are supported similar to the Pressure Graph. Each event type in the Event Flags graph will have a corresponding entry in the sidebar summary area. Is there an actual physical difference in how the two machines are providing air pressure? ResMed: Flow Limits are calculated as an index, 0-1, indicating the flatness of the breath-form on the flow rate chart. ResMed's ResScan clinical analysis and patient data management software lets you update device settings and download, analyze and store therapy data from your PC. OSCAR is an acronym that stands for, Open Source CPAP Analysis Reporter. OSCAR - the Open Source CPAP Analysis Reporter. After losing weight i changed to an APAP machine. https://www.cpap.com/cpap-faq/Common-Side-Effects#why-do-i-have-a-headache-when-i-wake-up. See the relationship between Pressure and Mask Pressure. 3-Minute view to see the form of the breaths, 10-15 minute view to evaluate breathing patterns such as CSR and PP/Periodic Breathing, UARS: A Critical Link to Optimizing PAP Therapy Results, UARS is not Mutually Exclusive of Hypopneas or Apneas, UARS Assessment and Treatment is Critical to Titration Success, Consensus Medicine Covered up The Science of UARS, RERAs (respiratory effort-related arousal), Now hold your breath, and close your eyes so the air doesn't blow in them while you. I use it faithfully every night, all night. I still have my machine from my prior bout with SA and told him to cancel that order. Can you please let me how to do this? Login or Create an Account Apnea Board Forum - CPAP | Sleep Apnea / Public Area / Main Apnea Board Forum / Understanding OSCAR Data Now, look at the little arrows in the calendar. Clicking on these buttons will include or exclude sessions from the display of the night's data. I was diagnosed with mild sleep apnea (ahi of 8) so I was given an auto CPAP or APAP. I just got my ResMed machine Monday and used it every night. OSCAR is software that is compatible with Windows, Mac, and Linux operating systems, developed for reviewing and exploring data produced by supported CPAP, bilevel, ventilators, and related machines used in the treatment of sleep apnea. It shows airflow in and out of your lungs throughout the night. Mask Pressure is used in advanced cases such as for Central Apnea or other breathing issues where the breathing is paced (Timed) such as in some cases of COPD. Through sleep study I was diagnosed in the severe category at 31increasing to 65 in deep REM with O2 levels down to 80%. Also shown are the total time in apnea, and the time over the leak redline. Note how quickly pressure hits the top of the PS setting when a breath is missed. / Either way, I would recommend you speak with your doctor, so that your therapy data can be viewed to determine if your settings should be adjusted. by dorilou28 Sun May 16, 2021 1:27 pm, Post Whats most important a low AHI score (Events/hr) or a low leakage score (L/min)? This a great article! The same for RERAs (RE), though not all machines report RERAs. Third is development of central or complex sleep apnea. OSCAR is based on SleepyHead so it will get you heading in the right direction. Here there are two plots, the top red one is IPAP or inhale pressure, the bottom green one is EPAP or Exhale pressure, the difference is the intended Pressure Support (or EPR with an AirSense) Therefore, well go over some common readings that many CPAP machines measure, including. You did get some basics, but not quite the right set-up (can't really see graphs for instance) and we would like to help. Logo and Content 2017 US Expediters Inc, cpaptalk.com, how to read Oscar - so confused and overwhelmed, AirStart 10 Auto CPAP with HumidAir Heated Humidifier, Re: how to read Oscar - so confused and overwhelmed, Ultra Mirage Full Face CPAP Mask with Headgear, viewtopic/t158560/How-to-post-images-for-review.html, AirCurve 10 VAuto BiLevel Machine with HumidAir Heated Humidifier, http://cpaptalk.com/wiki/index.php/Oscar:organize, Additional Comments:Mask Bleep Eclipse https://bleepsleep.com/the-eclipse/. It an insurance scam, is all it is..talk about killing an ant with a sledgehammer! ResMed ASV maintains a constant Minute Volume to manage Central Sleep Apnea. Thanks for your help, Sheriff Dry mouth. Also, I had high blood pressure and that went completely away after CPAP treatment! The results that you are listing, could be displaying improved results however, you must speak with your doctor to have your data analyzed for certainty. With File Explorer, locate the file, left click on it, hold, and then you can drag the file into a post you are composing here. My sleeping varies between 5-7 hrs every night but my api number is always below 5. What is the difference between the two? You can always try a different mask for comfort, but youd be risking an increase in your AHI, leak rate, and/or comfort. Please see the link below for multiple versions of the software. OSCAR - the Open Source CPAP Analysis Reporter OSCAR is software compatible with Windows, Mac and Linux operating systems, developed for reviewing and exploring data produced by supported CPAP, bilevel, ventilators and related machines used in the treatment of sleep apnea. You can adjust the CPAP pressure to fit your own particular needs. If you have serious heart disease and you see a lot of PB scored in your flow rate data, it is worth mentioning it to your cardiologist as well as your sleep doctor. You mentioned that the fixed pressure and masks are the same with both machines, but what about other settings? Please contact our customer service department at: 1-800-356-5221, with your machine near you so that we can provide you with accurate information and efficient service on your machine. If you wish to submit a partial night highlighting a problem feel free to do so in addition to the full night. Hi Susan, it means your AHI, (total episodes) is zero. If they determine that yes you have central and change your machine, you'll probably feel better immediately. As such, they represent an intrinsic lung pathology that leads to a restrive physiology due to increased stiffness and decreased compliance. So I use a ResScan software to print out my data thru my laptop and printer. It's also important to understand that the data for any particular date is the data for the NIGHT that started on on that date and ended the following morning. I thought the machine was supposed to ramp up and down as need rather than maintaining a constant setting. The numbers you are seeing is after the CPAP machine has corrected your apneas. He brings the patients perspective to the CPAP.com blog and has received formal training in CPAP machines, masks, and equipment. The picture contains the OSCAR charts: Event Flags, Pressure, and Time at Pressure. Open OSCAR 4.2 Step 2. I asked him why would I need a machine for such a mild case, why not an oral device? benzodiazepines), alcohol and sleeping your back could add to your pressure requirements temporarily.>. Hey Dan, we are happy to hear that you found the article helpful. It is usually suggested that VS2 be turned off when presenting screenshots for discussion as the large number of events recorded can overwhelm other data on the charts. As the condition progresses, air-trapping ensues, leading to lung hyperinflation. Eventually you will get used to it! High tidal volumes also decrease venous return and reduce cardiac output. Also, are you using a humidifier and, or heated hose? Don't go to bed until you're tired. Hi - would like to help you but could you possibly look again at Oscar re posting what and what not? Please feel free to reach us at: 1-800-356-5221, or you may e-mail us at: cpap@cpap.com, with further questions, or concerns. Your AHI score is most likely accurate, but you can always speak with your sleep therapist, or doctor to have your data reviewed. The following picture is from a APAP device where there were two events that occured at Pressure Interval 8.6 cmH2O (8.5<= P < 8.7). Hello Ive use a cpap machine for many years and never seen this emblem ? Im new to this machine and the company that gave it to me didnt explain it to me and dont see my Dr till January. I havent been back to the pulmonologist in over 10 years (dont even remember who he was), and have no way to prove DOT compliance. Humidifier: S9 Series H5i Heated Humidifier . Or does an apap machine automatically show a lower reading each time you wear it? CPAP Algorithms The CPAP pressure level will be prescribed to the highest level you require during the night. Each individual is unique, therefore it seems sensible that CPAP therapy offers different pressure settings and not everyone would require the same setting for their obstructive sleep apnea (OSA). Therefore, patients acquire a breathing pattern of deep, slow breaths to minimize the work of breathing. I have a sophisticated machine that I do not know how to use, and thats bad business!!! And, while a low setting may be good for you, it might not be good for another person. In our prescriptions for bilevel, I would venture that the average gap is in the 5 to 6 range with tremendous variation, including some with a gap of only 2 or 3. Just don't go whole hog and post multiple images as that seems to trigger the spam filter. AUTOMATED CONTROL FOR DETECTION OF FLOW LIMITATION. / Second, if you have previously had an event type such as Clear Airway/Central Apnea event (CA) recorded, that category will always display even if you have none on the current night. Didn't think so. If the xPAP is not used during any given day it is considered a "non-compliant" day. A slow increasing leak is more likely the mask just being dislodges somewhat. Thank you. I have started using vent med Ds-6 cpap machine.its sleep report doesnt say anything about AHI.AM I LOOKING AT RIGHT PLACE. This is what causes some of the CA events. Obstructive apnea 90 Tidal Volumes and Minute Vent can be seen via the 'volume under the curve', flow limits may show as "grassy" on the full night view but are readily apparent when viewed with the breath waveform is readily distinguished, typically 2-3 minutes. Hey Rich, sorry to hear about the leak rate that you are experiencing. It shows the desired maximum leak rate. The 10 means that 95 percent of the time you needed a 10 pressure during the past nights sleep. Is that AHI score likely to be inaccurate with a high leak rate? Philips Respironics ASV manages Tidal Volume for the purpose of managing Central Sleep Apnea. HI Please speak with your doctor for further interpretation of your AHI. Pressure is set at 11. Apneas (200), Hypopnea (200) = Total number of episodes is 400. If data has been imported from a Zeo sleep monitor device, additional graphs will be available, including Sleep stage, To reset the graph order for the Advanced Charts click on View/Reset Graphs/Advanced. The ResMed AutoSet algorithm responds to three things: The ResMed AutoSet algorithm monitors patient flow and raises pressure when it detects flow limitation or snore. on screen would please explain what it means thank you. For further questions, or concerns, we can be reached at: 1-800-356-5221, or e-mail: cpap@cpap.com. I had been diagnosed with mild sleep apnea some months back. When you have an AHI below 5 per hour, it is considered normal. Modern CPAP machines are incredibly sophisticated and capable devices that can provide a wide range of specific results recorded as data throughout the night. Svenska / There isnt any difference in the air pressure provided by the machines as long as all of the settings are the same. Hi Peter, the leak rate can effect your AHI. The calendar covers up a lot of useful information and should always be hidden when making screenshots for uploading to a forum. RDI = apneas + hypopneas + RERAs/Flow Limitation/UARS. Its common for AHI to vary from night to night. Place your mask on (hand holding is OK). My personal bilevel settings are 21/12.5 for a gap of 8.5. Place the cursor on a graph, hold the Ctrl button and rotate the scroll wheel; Use the keyboard Up Arrow to zoom in and the Down Arrow to zoom out; To zoom out to the full view you can also right-click on any graph title and select "100% zoom level". The settings on your machine may need to be adjusted. Below are instructions for how to access the provider menu on the Respironics M Series Pro CPAP machines. Dansk / http://www.cpaptalk.com/viewtopic/t37748/What-is-a-normal-leak-rate-and-AHI-rate.html. Seeing Flow Limits in this graph is almost always accompanied by an increase in pressure as the ResMed algorithms depend heavily on the flow limits that are shown in this graph. There are some comfort adjustment features that you may have access to, which does not require you speaking with your doctor. For each parameter (referred to as a 'channel') the panel shows the minimum recorded, the median, 95th percentile and the maximum. Although these machines can vary by function, complexity, and price, the best are those that include a variety of statistics about your sleep patterns each night. Woke up at 10:30 AM, my machine time said 4 hours.

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