But fitting a battery of any size or shape externally gets round any supply problems, at the cost of appearance. And once fitted, it is easily replaceable in future using the leads coming out of the case.
How long do headband electrodes last? By using the “headband_impedance” data in each daily xml data file a measurement is possible. There is a number given for each period in the 24 hour day but only non-zero numbers (1-255) are given while using the headband. The first and last non-zero periods are not used because they may be for only part of the period. The good periods are averaged to get a number for the headset impedance. I assume that lower numbers are better (lower resistance). The earliest data for the headset I am using now is 8/8/2013 with an impedance of 131.47. Additional data was analyzed for 5/30/2014, 130.29; 1/21/2015, 130.67; 4/10/2015, 127.40. The final impedance is 97% of the initial impedance so the numbers are all very close. Over a year and a half the impedance has essentially not changed. This headband was purchased from Zeo. Each night I put a lotion on my forehead and the next morning dab the electrodes with the sheet to clean up the electrodes. The lotion is Avalon Organics Hand & Body Lotion, Lavender, purchased from my local food co-op. The elastic parts of the headband look like they may wear out first.
That’s very interesting, I’ve often wondered how and why electroconductive cloth impregnated with silver would wear out. Zeo said electrodes lasted months; I’ve generally got the impression from postings that up to a year is normal; cleaning with alcohol, etc. is reported to have had good results, presumably because poor contact is due to build-up of grunge rather than wear as such. If Avalon Organics lotion works, that’s great; one might otherwise experiment adding (non-adhesive) conductive gel at night. There have also been descriptions of how to make a new headband.
Personally, when replacement headbands became unavailable I started using disposable ECG electrodes, expensive if bought fresh and used once as intended. With techniques that I’ve refined a bit I can get about two weeks out of each set of three electrodes; mine are now years outdated and from a packet opened up to six months ago, making them very cheap, though a bit more fiddly (but not so constricting!) than a headband. Many vital details in post #161, which I’ve edited a few times. For anybody coming across a used working bedside Zeo, a working headband is not essential, but the little black transmitter that clips onto the headband is. The transmitter will last until its Li-ion battery dies; there have been postings on battery replacement when that happens.
To use instead of conventional EEG electrodes, a flexible electronic skin that conforms to the body is being developed. It is so light that it sticks to the skin through van der Waals force, and can be worn continuously for two weeks. It’s a small patch of gold electrodes on and behind the ear. During development it’s wired, but wireless communication is being looked into. One application is to let wearers control things by thinking about them.
Does anyone know if there is a way to export the binary data from the SQLite database for the Zeo Mobile Pro to the .dat file that the Zeo Decoder Viewer will accept?
At the moment I’m just exporting the whole db on my android as csv file from time to time and it works pretty well, but it does not contain the detailed sleep graph, only showing as “blob”.
The blob is just the binary version of the data that is already there in the other tables in the database. I spent some time looking into it as I wanted to add the sqlite import into my zeo viewer. I did build it in in my latest version, but there is a bit of a problem with getting the dates to line up. I don’t have a mobile system to be able to work out the timing, so I asked on the viewer thread for assistance, but no-one responed, so I assume there isn’t a demand for a mobile import.
I can tell you where the data is but obviously I cant tell you how to get the date right!
Hey woodinblack, it’s awesome that you were working on it already! I’m not about the demands but I myself would very much like to see the feature! I’ll reply to you on the thread of the topic
I saw a Zeo Pro for sale. This is the one that exports to an iOS app. But the app is no longer available. I see some solutions here to get the data from the Zeo bedside device to a viewing software. But what about the pro version that use to get data from a bluetooth connection?
Are there mobile apps for this, too?
I know this may have been discussed. I am sorry. I am a newbie. Thank you for your help
Any other ideas about the app or a good deal on the bedside unit would be greatly appreciated. For now I am using the Basis Peak. Supposedly the closest approximation to polysomnography. There was an article about this on the Huffington Post
If you have a spare android phone/tablet(no matter how crappy), I’m sure people who still use the mobile pro version including myself can just upload the apk for you to install.
I’m hanging on to the Zeo till something comparable or better comes to the market. Based on my research the Basis watch is good but not quite on par with Zeo for sleep tracking.
That is good to know. The only question that is still burning is if the charging station can access the headband data. Right now, I have found that the non-bedside version data is most easily collected from the SQLite database in the Android app. The data is unencrypted from what I can tell but it is not convenient to collect the data this way.
I’ve just read through the entire thread after migrating the forum to the new platform, and I’ve surfaced the most important posts at the bottom of the first post.
I’ve posted a few times about this; I’ll summarise here, as the post numbers I’ve cited before have changed with the new forum system. My original post, which I updated a few times, but doesn’t seem updatable in the new forum system, was #160; today it shows as #161 if I seek it by content (string “Tensive adhesive conductive gel”, with quotes), or #158 if I enter it into the post number box at the bottom. of the page. Link is
The Zeo clock transmitter (and presumably the mobile) works perfectly with some standard disposable ECG electrodes, designed for one use, but actually lasting at least 10 nights. There are no problems with expiry date or the time the bag is open (officially electrodes should not be used more than 30 days after the bag is opened. I am using electrodes that expired in September 2012, and have used them from a bag opened 10 months before; they worked just as well as a freshly-opened in-date pack). Electrodes can reliably be used for 10 days, longer with special care, so cost is not an issue (using 3 new electrodes every night costs a lot). To get more than a single night’s use, surgical tape (Hypafix) and adhesive conductive gel (Tensive) must be used. It’s a little messier than a headband, but easy enough. The details, which are critically important, are in the post I cite above.
Genuine battery with code PP312122AB no longer available on Aliexpress. But anyone can search Aliexpress or Ebay with “302020” and will find almost same Li-po 100mah battery. Also here you can find store with custom size batteries, where different exotic sizes exists. Maximum battery size to fit Zeo Mobile is 24*21mm(standard thickness 3.1 mm).
I just bought a Zeo bedside on eBay and tried it for the first time last night. I’m having some trouble getting the sleep numbers to add up / reconcile, and was hoping someone here could help.
Below is a screenshot of last night’s sleep from the Zeo Decoder Viewer (0.2a2Release). I’ve also attached the raw data at the bottom of this post in DAT and XML format.
If I went to sleep at 11:51PM (Bedtime) and woke up at 7:45AM (Rise Time), the maximum possible amount of sleep would be 7hr 54min (assuming I slept the entire time). How, then, is Total Sleep 7hr 58min (4min greater than the maximum possible amount)? Further, how is Total Sleep + Wake Time = 8hr 5min?
How are Bedtime (11:51PM) and Rise Time (7:45AM) calculated? Is Bed Time the time at which I removed the headband from the charger, or the time at which I actually fell asleep? Likewise, is Rise Time the time at which I put the headband back on the charger, or the time at which I actually woke up? (Note: I laid in bed for ~10min before actually getting up and putting the headband back on the charger.)
Zeo says I awoke two (2) times (Times Woken), but I only see one red bar on the graph, between 4AM and 5AM. Is it perhaps counting the time that I wake up in the morning as well (at 7:45AM), or is there some other time that I awoke during the night that’s not shown on the graph?
Lastly, it appears I’m getting too much REM and not enough Deep Sleep. According to the Zeo materials, the average REM Sleep for a person in his 20’s, like myself, is 1hr 36min, whereas I got a whopping 3hr 46min (2.4x the average). Likewise, the average Deep Sleep is 1hr 23min, whereas I got a measly 52min (0.6x the average). Are there any recommendations for increasing Deep Sleep (even at the expense of REM)?
Hi zeakian, Regarding question 3. If you look at the 21T23_51_39.xml file there is display data and base data for your sleep. The base data shows drifting between wake and rem before you got up, so that may be your additional count. The base data is finer detail (30 sec intervals) vs the display data.
Regarding question 4. Many things can interfere with your getting into deep sleep. Does this pattern repeat daily? You may want to combine other data to see if you can narrow down the cause. Assuming your sleep environment is good (cool, dark, quiet, comfortable) then look for internal causes. I would consider heart rate, snoring, PulseOX, and leg movement as candidates. Have you had a formal sleep study?
